I. Choose the best answer.
1. I (met/ was meeting) a friend while I (did/ was doing) the shopping.
2. I (turned/ was turning) round and (saw/ was seeing) Paula.
3. She (wore/ was wearing) a bright red coat.
4. You (always watch/ are always watching) television. You should do something more active.
5. I (paid/ was paying) for my things when I (heard/ was hearing) someone call my name.
6. We (left/ was leaving) the cafe and (said/ were saying) goodbye.
7. This time last Monday we (took/ were taking) the final test.
8. Mr. Blair (always goes/ is always going) to work by bus.
9. While we (had/ were having) a drink, a waiter (dropped/ was dropping) a pile of plates.
10. John is never satisfied. He (always complains/ is always complaining).
II. Choose the given to complete the following sentences: while/ during/ for/ since.
1. Mrs. Quyen has been in New York __since___ July 1st.
2. I fell and hurt myself ___while___ I was playing tennis.
3. It started to rain ___during___ the match.
4. We have played tennis __for___ two hours.
5. _during_____ the summer I stayed on a farm in New Mexico.
6. I learned Italian _when_____ I was there.
7. I haven’t met him ___since___ we left Washington.
8. We went on holiday to Florida __during____ three weeks.
9. ___during___ the meal we exchanged news.
10. ____while__ I was talking to Barbara, I learned that Tony was in hospital.