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A.

1- had (example/пример)

2- was driving

3- flew

4- tried

5- crashed

6- wasn't

B.

1- went

2- was talking

3- arrived

4- gave

5- was

6- ended

C.

1- tidied

2- was tidying

3- found

4- had

5- didn't want

6- put

7- stored