Complete the following sentences using the past perfect correctly.
1. When I turned on the radio, the news (finish)
2. When we got home, we saw that somebody (break) the
kitchen window.
3. By the time we arrived, the store (close)
4. My friend called to tell me that I (forget) my wallet in
his car.
5. When we left home, it (stop) snowing!
6. They recognized me because (not change) at all.
7. We didn't get a table in the restaurant because we(not make) a reservation.
8. When Janet went back to the hotel, she (buy) some
souvenirs.
9. By the time I gave you back the book,(read) it
carefully.
10. Tina felt nervous during her flight because she
(not fly)
before.
11. The movie (not start) when we got to the theater.
12. your brother
(eat) breakfast when he left?

The past perfect tense comprises the verb and a past participle of a verb. The following sentences have been completed using the past perfect tenses;

1. When I turned on the radio, the news had finished.

2. When we got home, we saw that somebody had broken the kitchen window.

3. By the time we arrived, the store had closed.

4. My friend called to tell me that I had forgotten my wallet in his car.

5. When we left home, it had stopped snowing!

6. They recognized me because I had not changed at all.

7. We didn't get a table in the restaurant because we had not made a reservation.

8. When Janet went back to the hotel, she had bought some souvenirs.

9. By the time I gave you back the book, I had read it carefully.

10. Tina felt nervous during her flight because she had not flown before.

11. The movie had not started when we got to the theater.

12. Had your brother eaten breakfast when he left?

As seen in the foregoing the past perfect forms of the sentences have been rewritten. In the first sentence, the verb; had and the past participle; finished were used to form the past perfect tense.

So, the answers above are correct.

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1. When I turned on the radio, the news had finished.

2. When we got home, we saw that somebody had broken the kitchen window.

3. By the time we arrived, the store had closed.

4. My friend called to tell me that I had forgotten my wallet in his car.

5. When we left home, it had stopped snowing!

6. They recognized me because I had not changed at all.

7. We didn't get a table in the restaurant because we had not made a reservation.

8. When Janet went back to the hotel, she had bought some souvenirs.

9. By the time I gave you back the book, I had read it carefully.

10. Tina felt nervous during her flight because she had not flown before.

11. The movie had not started when we got to the theater.

12. Had your brother eaten breakfast when he left?

Explanation:

Past perfect tense is primarily employed to display 'the actions that occurred in the past before a further action took place.' It assists in clarifying the time of action by telling which occurred before. It is formed by using 'had + Past participle form of the verb' that denotes the previous action(in the past) while the latter is written in past indefinite. Thus, the given sentences are completed by using this rule.

the answer should be b.

explanation:

it should be b because she researched before writing so it would be in past tense. "the author researches her subject before she had written the first draft.

1, 4, and 5 are all conflicts