1. We ____________________ (live) in this city for five years now.
Answer: have been living
Explanation: We use the present perfect continuous tense when we want to emphasize the duration of an action that started in the past and is still continuing in the present. In this sentence, the action of living in the city started five years ago and is still ongoing, so we use the present perfect continuous tense "have been living."
2. She ____________________ (study) for the exam since morning.
Answer: has been studying
Explanation: Similar to the previous sentence, this sentence also emphasizes the duration of the action. The action of studying for the exam started in the morning and is still ongoing, so we use the present perfect continuous tense "has been studying."
3. They ____________________ (prepare) for the party all day.
Answer: have been preparing
Explanation: Again, the present perfect continuous tense is used to emphasize the duration of the action. The action of preparing for the party started earlier and is still ongoing, so we use the present perfect continuous tense "have been preparing."
4. I ____________________ (wait) for my friend for over an hour.
Answer: have been waiting
Explanation: The action of waiting for the friend started over an hour ago and is still ongoing, so we use the present perfect continuous tense "have been waiting."
5. He ____________________ (play) the piano since he was a child.
Answer: has been playing
Explanation: Here, the action of playing the piano started in the past (when he was a child) and is still continuing in the present, indicating a duration. Hence, we use the present perfect continuous tense "has been playing."
6. The dog ____________________ (chase) its tail for the past few minutes.
Answer: has been chasing
Explanation: The action of chasing its tail started a few minutes ago and is still ongoing, so we use the present perfect continuous tense "has been chasing."
It is important to note that the present perfect continuous tense is used when we want to focus on the duration of an action, whereas the present perfect simple tense is used when we want to emphasize the result or completion of an action.
Answer: have been living
Explanation: We use the present perfect continuous tense when we want to emphasize the duration of an action that started in the past and is still continuing in the present. In this sentence, the action of living in the city started five years ago and is still ongoing, so we use the present perfect continuous tense "have been living."
2. She ____________________ (study) for the exam since morning.
Answer: has been studying
Explanation: Similar to the previous sentence, this sentence also emphasizes the duration of the action. The action of studying for the exam started in the morning and is still ongoing, so we use the present perfect continuous tense "has been studying."
3. They ____________________ (prepare) for the party all day.
Answer: have been preparing
Explanation: Again, the present perfect continuous tense is used to emphasize the duration of the action. The action of preparing for the party started earlier and is still ongoing, so we use the present perfect continuous tense "have been preparing."
4. I ____________________ (wait) for my friend for over an hour.
Answer: have been waiting
Explanation: The action of waiting for the friend started over an hour ago and is still ongoing, so we use the present perfect continuous tense "have been waiting."
5. He ____________________ (play) the piano since he was a child.
Answer: has been playing
Explanation: Here, the action of playing the piano started in the past (when he was a child) and is still continuing in the present, indicating a duration. Hence, we use the present perfect continuous tense "has been playing."
6. The dog ____________________ (chase) its tail for the past few minutes.
Answer: has been chasing
Explanation: The action of chasing its tail started a few minutes ago and is still ongoing, so we use the present perfect continuous tense "has been chasing."
It is important to note that the present perfect continuous tense is used when we want to focus on the duration of an action, whereas the present perfect simple tense is used when we want to emphasize the result or completion of an action.