用动词适当形式填空

动词时态158题
1. I´m going to listen to the radio. Please ____ (not talk) any more.
2. The students ____ (do) their homework from four to five this afternoon.
3. The students ____ (be) busy now. They ____ (have) an English exam next Monday.
4. Mary must ____ (look) after her little sister because she is too young.
5. ____ (he) you waiting for a bus now?
6. This coat is very cheap. I ____ (take) it now.
7. I´ll tell him about it when he ____ (come) back.
8. Could you tell me how .I ____(can get) to No 3 Middle school.
9. He ____ said that the new teacher ____ (give) the students an English lesson now.
10. I ____ (milk) a cow three times.
11. Edison´s mother ____ (teach) him herself.
12. He ____ (watch) TV once a week.
13. Don´t speak loudly . The baby ____ (sleep).
14. I won´t go out until .I ____ (finish) my homework.
15. Could you tell me when the train ____ (arrive).
16. I ofte