1.
When we ( met) him, he (was going) to the shop. He ( wanted) to buy some
food. 2. What were you ( looking) for when I ( opened) the door? 3. Was your
daughter ( skating) on the pond from five till six? 4. What were they (
laughing) at when he ( came) in? - They (were laughing) at a funny story. 5.
Where was he ( going) when rain (to begin)? - He (was going) to the office. 6.
What was she ( playing) when I ( rang) her up? - She (was playing) the violin.
7. Who (was quarrelling) at that time? - His friend (was quarrelling). 8. Beth and
Tom (were watching) a TV programme when their mother ( asked) them to help
her. 9. Did you ( help) your mother while she (was washing) up? 10. The
scientist (were working) in the laboratory when somebody ( switched) off the
light. 11. Whom were you (talking) on the phone to, when I came into the
room? 12. Jane (was having) a walk in the park when it ( began) to snow.
13. Why were you (not having) classes at nine o'clock? - Our teacher (was)
ill. 14. Yesterday the whole lesson we (were revising) grammar. 15. While
Helen (was taking) a shower mother ( washed) the dishes. 16. I (was laying) the
table when I ( broke) a plate. 17. When I (met) them in the yard,
they (were laughing). 18. She (did not get) up at six o'clock yesterday. She
( got) up at eight. 19. They were just ( leaving) the house when we (
arrived). 20. When he ( came) to the station, his friend was already (
waiting) for him.