Pregunta 1 Pregunta 1 · D4 Bloom: Understand A conversation about visiting different cities.
"I ____ to Cartagena three times so far, but I ____ there last year for the first time."
Elige una opción para comprobar tu respuesta.
A) went / have been B) was / have gone C) have gone / was going D) have been / went
Respuesta correcta: D) have been / went
💡 Explicación
Present Perfect is used for experiences at an unspecified time in the past. Past Simple is used for actions completed at a specific time (e.g., last year).
Intentar de nuevo Ver respuesta Respuesta correcta: D) have been / went
A) went / have been Incorrect. The first part refers to unspecified time (Present Perfect), the second to a specific past time (Past Simple). B) was / have gone Incorrect. 'Was' is Past Simple and 'have gone' implies they haven't returned yet. C) have gone / was going Incorrect. The second part requires Past Simple, not Past Continuous. D) have been / went Correct. 'Have been' covers the experience up to now, and 'went' specifies a finished time (last year). 💡 Explicación
Present Perfect is used for experiences at an unspecified time in the past. Past Simple is used for actions completed at a specific time (e.g., last year).
Pregunta 2 Pregunta 2 · D4 Bloom: Apply Discussing a recent flight.
"My brother ____ from London. He ____ at El Dorado airport two hours ago."
Elige una opción para comprobar tu respuesta.
A) just arrived / has landed B) arrived / lands C) has just arrived / landed D) is arriving / landed
Respuesta correcta: C) has just arrived / landed
💡 Explicación
Contrast between 'just' with Present Perfect and specific time markers with Past Simple.
Intentar de nuevo Ver respuesta Respuesta correcta: C) has just arrived / landed
A) just arrived / has landed Incorrect. 'Has landed' cannot be used with 'two hours ago'. B) arrived / lands Incorrect. 'Lands' is Present Simple and doesn't fit the past context. C) has just arrived / landed Correct. 'Has just arrived' shows recent completion; 'landed' is used with a specific time expression (two hours ago). D) is arriving / landed Incorrect. 'Is arriving' implies current action, but the brother is already there. 💡 Explicación
Contrast between 'just' with Present Perfect and specific time markers with Past Simple.
Pregunta 3 Pregunta 3 · D4 Bloom: Remember Travel planning and luggage.
"Since I started traveling, I ____ light. I ____ a heavy suitcase since 2015."
Elige una opción para comprobar tu respuesta.
A) always packed / didn't carry B) have always packed / haven't carried C) pack / am not carrying D) have packed / didn't carry
Respuesta correcta: B) have always packed / haven't carried
💡 Explicación
Use of Present Perfect with 'since' to describe states or habits that began in the past and continue now.
Intentar de nuevo Ver respuesta Respuesta correcta: B) have always packed / haven't carried
A) always packed / didn't carry Incorrect. Needs Present Perfect for the duration since the start. B) have always packed / haven't carried Correct. Both parts describe a state/habit that started in the past and continues to the present. C) pack / am not carrying Incorrect. Does not show the connection between past and present. D) have packed / didn't carry Incorrect. The second part also needs Present Perfect because of 'since 2015'. 💡 Explicación
Use of Present Perfect with 'since' to describe states or habits that began in the past and continue now.
Pregunta 4 Pregunta 4 · D6 Bloom: Analyze A blog post about a trip to the Amazon.
"We ____ through the jungle for three days when we finally ____ the local community."
Elige una opción para comprobar tu respuesta.
A) have trekked / reached B) were trekking / have reached C) had been trekking / reached D) trekked / were reaching
Respuesta correcta: C) had been trekking / reached
💡 Explicación
Grammatical complexity: Past Perfect Continuous vs Past Simple in a travel narrative.
Intentar de nuevo Ver respuesta Respuesta correcta: C) had been trekking / reached
A) have trekked / reached Incorrect. Present Perfect doesn't fit a sequence of completed past events well here. B) were trekking / have reached Incorrect. 'Have reached' is Present Perfect and doesn't fit the past narrative. C) had been trekking / reached Correct. Past Perfect Continuous describes the ongoing action before a specific point in the past. D) trekked / were reaching Incorrect. The sequence of events is better described by B. 💡 Explicación
Grammatical complexity: Past Perfect Continuous vs Past Simple in a travel narrative.
Pregunta 5 Pregunta 5 · D6 Bloom: Understand Booking a hotel.
"I ____ this hotel many times before they ____ the prices last month."
Elige una opción para comprobar tu respuesta.
A) visited / have increased B) have visited / increased C) visit / increased D) had visited / increased
Respuesta correcta: D) had visited / increased
💡 Explicación
Past Perfect to show the order of two past events.
Intentar de nuevo Ver respuesta Respuesta correcta: D) had visited / increased
A) visited / have increased Incorrect. 'Last month' requires Past Simple. B) have visited / increased Incorrect. Using Present Perfect with a sequence of past events is less precise here. C) visit / increased Incorrect. Tense mismatch. D) had visited / increased Correct. Past Perfect shows the action happened before another action in the past (increased). 💡 Explicación
Past Perfect to show the order of two past events.
Pregunta 6 Pregunta 6 · D6 Bloom: Apply A review of a guided tour.
"The tour guide ____ that he ____ to the ruins several times before the incident."
Elige una opción para comprobar tu respuesta.
A) says / has been B) mentioned / had been C) mentioning / was D) had mentioned / went
Respuesta correcta: B) mentioned / had been
💡 Explicación
B2 complexity: Reporting verbs and the use of the Past Perfect for backshifting or sequencing.
Intentar de nuevo Ver respuesta Respuesta correcta: B) mentioned / had been
A) says / has been Incorrect. The reporting verb should be in the past for this context. B) mentioned / had been Correct. Reported speech/past narrative requiring Past Perfect for the earlier event. C) mentioning / was Incorrect. Grammatically incomplete. D) had mentioned / went Incorrect. The order of events is reversed. 💡 Explicación
B2 complexity: Reporting verbs and the use of the Past Perfect for backshifting or sequencing.
Pregunta 7 Pregunta 7 · D8 Bloom: Analyze An interview with a world traveler.
"Up until that moment, she ____ never ____ a passport, let alone ____ a plane."
Elige una opción para comprobar tu respuesta.
A) has / seen / boarded B) was / seeing / boarding C) did / see / board D) had / seen / boarded
Respuesta correcta: D) had / seen / boarded
💡 Explicación
Past Perfect for life experiences relative to a specific time in the past.
Intentar de nuevo Ver respuesta Respuesta correcta: D) had / seen / boarded
A) has / seen / boarded Incorrect. 'Up until that moment' implies a past timeframe. B) was / seeing / boarding Incorrect. Past Continuous doesn't fit the 'never' experience context. C) did / see / board Incorrect. Past Simple is less precise for experiences before a past point. D) had / seen / boarded Correct. Past Perfect is used to describe experiences (or lack thereof) up to a point in the past. 💡 Explicación
Past Perfect for life experiences relative to a specific time in the past.
Pregunta 8 Pregunta 8 · D8 Bloom: Analyze A text about the evolution of sustainable tourism in Colombia.
"Since the 1990s, the government ____ to promote eco-tourism, though they ____ many hurdles early on."
Elige una opción para comprobar tu respuesta.
A) worked / have encountered B) is working / encountered C) had worked / encountered D) has worked / encountered
Respuesta correcta: D) has worked / encountered
💡 Explicación
Contrast between long-term ongoing action (Present Perfect) and specific past challenges (Past Simple).
Intentar de nuevo Ver respuesta Respuesta correcta: D) has worked / encountered
A) worked / have encountered Incorrect. Tenses are swapped incorrectly. B) is working / encountered Incorrect. 'Since' requires a perfect tense. C) had worked / encountered Incorrect. Past Perfect would imply they stopped working on it. D) has worked / encountered Correct. 'Since the 1990s' requires Present Perfect; 'early on' refers to a specific past period. 💡 Explicación
Contrast between long-term ongoing action (Present Perfect) and specific past challenges (Past Simple).
Pregunta 9 Pregunta 9 · D8 Bloom: Evaluate An essay on the impact of low-cost airlines.
"By the time the new regulation was passed, the company ____ thousands of passengers ____ cheaper flights for over a decade."
Elige una opción para comprobar tu respuesta.
A) had helped / to access B) helped / offer C) has helped / accessing D) was helping / access
Respuesta correcta: A) had helped / to access
💡 Explicación
Complexity: Past Perfect and infinitive complements in a formal context.
Intentar de nuevo Ver respuesta Respuesta correcta: A) had helped / to access
A) had helped / to access Correct. 'Had helped' for the past-before-past and 'to access' as the infinitive complement. B) helped / offer Incorrect. Needs perfect tenses for the duration. C) has helped / accessing Incorrect. Cannot use Present Perfect with 'was passed'. D) was helping / access Incorrect. Does not emphasize the duration and completion before the regulation. 💡 Explicación
Complexity: Past Perfect and infinitive complements in a formal context.
Pregunta 10 Pregunta 10 · D10 Bloom: Analyze Discussion on the psychology of travel.
"Scarcely ____ we ____ our destination when we realized that our expectations ____ entirely based on old brochures."
Elige una opción para comprobar tu respuesta.
A) did / reach / had been B) have / reached / are C) were / reaching / been D) had / reached / were
Respuesta correcta: D) had / reached / were
💡 Explicación
Advanced B2 structure: Inversion with negative/restrictive adverbials (Scarcely/Hardly... when).
Intentar de nuevo Ver respuesta Respuesta correcta: D) had / reached / were
A) did / reach / had been Incorrect. Inversion with 'Scarcely' usually takes Past Perfect. B) have / reached / are Incorrect. Tense mismatch for a past narrative. C) were / reaching / been Incorrect. Grammatically incorrect. D) had / reached / were Correct. Inversion with 'Scarcely' requires Past Perfect. 💡 Explicación
Advanced B2 structure: Inversion with negative/restrictive adverbials (Scarcely/Hardly... when).
Pregunta 11 Pregunta 11 · D10 Bloom: Evaluate A critique of a travel documentary.
"The director ____ his previous failures ____ him more cautious when filming in remote areas last year."
Elige una opción para comprobar tu respuesta.
A) admitted / had made B) admits / had made C) admitted / have made D) has admitted / made
Respuesta correcta: A) admitted / had made
💡 Explicación
Use of Past Perfect to show causality and sequence in a formal report.
Intentar de nuevo Ver respuesta Respuesta correcta: A) admitted / had made
A) admitted / had made Correct. Both actions are in the past, but the failures happened before the caution. B) admits / had made Incorrect. The first verb should be in the past for the context. C) admitted / have made Incorrect. Tense backshifting required. D) has admitted / made Incorrect. Less precise for the narrative of last year. 💡 Explicación
Use of Past Perfect to show causality and sequence in a formal report.
Pregunta 12 Pregunta 12 · D10 Bloom: Evaluate Speculating about a traveler's past motivations.
"It is highly probable that he ____ the project earlier had he ____ the necessary funding from the NGO."
Elige una opción para comprobar tu respuesta.
A) would start / receive B) would have started / received C) will start / had received D) started / would receive
Respuesta correcta: B) would have started / received
💡 Explicación
Mastery level: Third Conditional with inversion (had he received), representing advanced hypothetical thinking about past experiences.
Intentar de nuevo Ver respuesta Respuesta correcta: B) would have started / received
A) would start / receive Incorrect. Third conditional structure missing. B) would have started / received Correct. Standard Third Conditional with 'had he received' (inversion). C) will start / had received Incorrect. Mixed conditional that doesn't fit the past speculation. D) started / would receive Incorrect. Grammatically incorrect for this context. 💡 Explicación
Mastery level: Third Conditional with inversion (had he received), representing advanced hypothetical thinking about past experiences.
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