Question

Past Perfect Tense

1. after i ___________ my work, i left the office.

a) did b) was doing c) had done d ) done

2.the moment she saw the picture, she __________ him.

a) hard recognized b) recognized c) recognizes d) was recognizing

3. i was sleeping when the telephone __________.

a) was ringing b) had rung c) rang d)rings​

Answer 1

1- C

2- A

3- B

Para formar o Past Perfect, use had + past participle do principal

Answer 2

1) C 2) D 3) A I do not know if it is correct, but I hope I have helped