A. but      
B. so      
C. then    
D. and

1  He _____ (wash) the dishes in the kitchen when I saw him yesterday evening.
2. Some old people are happy _____ (be) with the young ones.
3. Tom says he _____ (not watch) the video film tonight.
4. How _____ Bob _____  (go) to school every day except weekends?
5. "Mun, I saw a new kind of bike. It _____ (cost) only two hundred and fifty yuan,"  "Oh, really?"
6. Can she _____ (run) as fast as Helen ?
7. We_____ (visit) the Great Wall next week.
8. Don't _____ (talk) now.
9. Let's_____ (try) our best _____ (finish) the work in an hour.

1. He ________(wash) the dishes in the kitchen when I saw him yesterday evening.
2. Some old people are happy _________(be)with the young ones.
3. Tom says he _________(not watch)the video film tonight.
4. How _______Bob ______(go)to school every day except weekends?
5. —"Mum, I saw a new kind of bike. It_____(cost) only two hundred and fifty yuan,"     
    —"Oh, really?"
6. Can she _______(run) as fast as Helen ?
7. We________(visit) the Great Wall next week.
8. Don’t _______(talk) now.
9. Let’s try our best _________(finish) the work in an hour.
10. She often_______ (visit) her aunt’s house last year.

1. Mrs Beet______(drive) very fast to work every day.
2. My mother goes to Beijing_______(two) a year.
3. Listen!Our English teacher_______(speak) at the meeting.
4. You'd better_______(not play) football in the street.
5. My sister_______(write) a letter yesterday.
6. He finished _______ (read) the novel at last.
7. Tom says he _______(not watch) the video film tonight.
8. My _______(eat) habits are very good.
9. Li Hua had a _______ (quickly) breakfast and then went to work.
10.Can you find the________(different) between this box and that box?