用动词的适当形式填空。

1. While we __________ (wait) for the bus, a girl __________ (run) up to us.

2. I __________ (telephone) a friend when Bob __________ (come) in.

3. Jim __________ (jump) on the bus as it __________ (move) away.

4. We __________ (test) the new machine when the electricity __________ (go) off.

5. She __________ (not want) to stay in bed while the others ________________ (all, work) in the fields.

6. While mother ________ (put) Cathy to bed, the door bell ________ (ring).

7. As I __________ (walk) in the park, it __________ (begin) to rain.

8. Even when she ___________ (be) a child she ________________ (already, think) of becoming a ballerina (芭蕾舞演员).

9. It was quite late at night. George __________ (read) and Amy __________ (ply) her needle when they __________ (hear) a knock at the door.

10. There __________ (be) a group round the fire when they __________ (reach) it. An old woman __________ (sit) on the ground near the kettle; two small children __________ (lie) near her; a donkey __________ (bend) his head over a tall girl.

答案

1. were waiting; ran

2. was telephoning; came

3. jumped; was moving

4. was testing; went

5. didn’t want; were all working

6. was putting; rang

7. was walking; began

8. was; was already thinking

9. was reading; was plying; heard

10. was; reached; was sitting; were lying; was bending