Consumer Society

Respuesta correcta: B) has become

• A) becameIncorrect. We need the Present Perfect for a trend that started in the past and continues to the present.
• B) has becomeCorrect! Present Perfect is used for changes and trends over a period of time.
• C) is becomingIncorrect. While it is happening now, the phrase "over the last decade" calls for the Present Perfect.
• D) becomesIncorrect. This is Simple Present, which describes a general fact, not a trend over time.

Respuesta correcta: C) have seen

• A) have been seeingIncorrect. "See" is generally a stative verb in this context and we use the Simple form for completed actions.
• B) sawIncorrect. "Already" is a typical marker for the Present Perfect in British English and common in B2 contexts.
• C) have seenCorrect! Present Perfect Simple is used to talk about how many times something has happened.
• D) seeIncorrect. This describes a habit, not a specific action completed recently.

Respuesta correcta: A) has been working

• A) has been workingCorrect! Present Perfect Continuous emphasizes the duration of an activity that started in the past.
• B) has workedIncorrect. While possible, the Continuous form is better to emphasize the ongoing effort and duration ("for hours").
• C) worksIncorrect. This describes a routine, not a specific ongoing activity.
• D) is workingIncorrect. This doesn't account for the duration starting in the past.

Respuesta correcta: C) have been promoting

• A) promotedIncorrect. This implies they stopped doing it.
• B) are promotingIncorrect. This focuses only on the present moment, ignoring the "for years" duration.
• C) have been promotingCorrect! It describes a continuous activity over a long period.
• D) have promotedIncorrect. The continuous form better captures the ongoing nature of the activity.

Respuesta correcta: C) have been waiting

• A) waitIncorrect. This is Simple Present and doesn't fit the time frame.
• B) have waitedIncorrect. The continuous form is preferred to show annoyance and duration.
• C) have been waitingCorrect! Perfect for expressing duration and the irritation of an ongoing situation.
• D) am waitingIncorrect. This doesn't link the past start date ("since last Monday") with the present.

Respuesta correcta: A) have been paying

• A) have been payingCorrect! Focuses on a recent, ongoing change in behavior.
• B) paidIncorrect. This suggests the behavior is finished.
• C) payIncorrect. This is too general and doesn't capture the recent trend.
• D) have paidIncorrect. The continuous form is better for describing a developing habit or focus.

Respuesta correcta: C) have you been reading / have read

• A) have you been reading / have been readingIncorrect. The second part indicates a quantity of completed tasks.
• B) have you read / have readIncorrect. The first part asks about duration, which prefers the continuous form.
• C) have you been reading / have readCorrect! "How long" asks for duration, while "three articles" counts completed actions.
• D) did you read / readIncorrect. These are past simple and don't link to the current state of knowledge.

Respuesta correcta: B) I have been shopping for groceries all morning.

• A) I have done my grocery shopping for the week.Incorrect. This implies the action is finished.
• B) I have been shopping for groceries all morning.Correct! The continuous form suggests the action is still in progress or just finished.
• C) I did my grocery shopping this morning.Incorrect. This is a finished action in the past.
• D) I shop for groceries on Saturday mornings.Incorrect. This is a general habit.

Respuesta correcta: A) has become saturated

• A) has become saturatedCorrect! Focuses on the current state resulting from a past process.
• B) has been becoming saturatedIncorrect. This sounds repetitive; the simple form is clearer for the resulting state.
• C) became saturatedIncorrect. Past Simple doesn't emphasize the current relevance of the situation.
• D) is becoming saturatedIncorrect. While possible, the Present Perfect emphasizes that the level of saturation is already high.

Respuesta correcta: B) have been finding

• A) have studiedIncorrect. This is a correct use of Present Perfect for an ongoing area of study.
• B) have been findingIncorrect. "Find" is a verb that usually describes a result or discovery, so "have found" is more appropriate here.
• C) have accumulatedIncorrect. This correctly describes the resulting state.
• D) have been spendingIncorrect. This correctly describes a continuous behavior.

Respuesta correcta: B) Statement 2, because the continuous form emphasizes an incomplete, ongoing action.

• A) Statement 1, because it shows the action is relevant now.Incorrect. Statement 1 implies you have finished reading them.
• B) Statement 2, because the continuous form emphasizes an incomplete, ongoing action.Correct! Statement 2 indicates you are still in the process.
• C) Both are interchangeable in this context.Incorrect. There is a clear difference in meaning regarding completion.
• D) Neither is correct for this situation.Incorrect. Statement 2 is specifically designed for this.

Respuesta correcta: D) They have a long-standing and ongoing commitment to innovation.

• A) They innovated once in the past.Incorrect. That would be Past Simple.
• B) They will innovate in the future.Incorrect. That would be a future form.
• C) They have just finished their last innovation.Incorrect. That would be Present Perfect Simple.
• D) They have a long-standing and ongoing commitment to innovation.Correct! It emphasizes the duration and current persistence of their work.