Put the verb into the correct form (Past Perfect)

1) She called the police when she (see) the light in the hall.

seed saw had seen

2) - Why did you get lost?

- Because I (forget) the map.

have forgotten forgot had

3) I was really hungry. I (not / eat) anything since the morning.

ate eaten hadn't haven’t

4) She didn't go to work. she (catch) a cold?

Has caught Had catched

5) After Peter (write) me an e-mail, I understood the problem.

wrote had has written

6) I arrived on Sunday. I (not / be) at home for two days.

haven’t been was hadn't

7) Where you (collect) the ticket before you parked your car?

collected have collect had

8) Nobody let me know that they (change) the time.

9) I didn't use my credit card because I (lose) it.

10) Martin didn't say hello to Jim because he (not / recognise) him.

11) What contract (they / sign) before the meeting ended?

12) - Why did you miss the plane?

- Because I (go) to a wrong lounge.

1) She called the police when she HAD SEEN the light in the hall.

Explanation: The action of seeing the light in the hall occurred before she called the police, so we need to use the Past Perfect tense to indicate the earlier action.

2) - Why did you get lost?

- Because I HAD FORGOTTEN the map.

Explanation: The action of forgetting the map occurred before getting lost, so we need to use the Past Perfect tense to indicate the earlier action.

3) I was really hungry. I HADN'T EATEN anything since the morning.

Explanation: The action of not eating anything occurred before feeling hungry, so we need to use the Past Perfect tense to indicate the earlier action.

4) She didn't go to work. She HAD CAUGHT a cold?

Explanation: The action of catching a cold occurred before she didn't go to work, so we need to use the Past Perfect tense to indicate the earlier action.

5) After Peter HAD WRITTEN me an e-mail, I understood the problem.

Explanation: The action of writing the e-mail occurred before I understood the problem, so we need to use the Past Perfect tense to indicate the earlier action.

6) I arrived on Sunday. I HADN'T BEEN at home for two days.

Explanation: The action of not being at home occurred before arriving on Sunday, so we need to use the Past Perfect tense to indicate the earlier action.

7) Where HAD YOU COLLECTED the ticket before you parked your car?

Explanation: The action of collecting the ticket occurred before parking the car, so we need to use the Past Perfect tense to indicate the earlier action.

8) Nobody let me know that they HAD CHANGED the time.

Explanation: The action of changing the time occurred before nobody let me know, so we need to use the Past Perfect tense to indicate the earlier action.

9) I didn't use my credit card because I HAD LOST it.

Explanation: The action of losing the credit card occurred before not using it, so we need to use the Past Perfect tense to indicate the earlier action.

10) Martin didn't say hello to Jim because he DIDN'T RECOGNIZE him.

Explanation: We don't need to use the Past Perfect tense in this sentence. The action of not recognizing Jim happened at the same time as not saying hello.

11) What contract HAD THEY SIGNED before the meeting ended?

Explanation: The action of signing the contract occurred before the meeting ended, so we need to use the Past Perfect tense to indicate the earlier action.

12) - Why did you miss the plane?

- Because I WENT to a wrong lounge.

Explanation: We don't need to use the Past Perfect tense in this sentence. The action of going to the wrong lounge happened at the same time as missing the plane.