Chọn thì thích hợp nhất để hoàn thành các câu sau: 6. Mary ______ dinner when her friend ______ at 6.30 yesterday. A. is having / calls B. was having

Chọn thì thích hợp nhất để hoàn thành các câu sau:
6. Mary ______ dinner when her friend ______ at 6.30 yesterday.
A. is having / calls B. was having / called C. had / called D. had / calling
7. Who ______ when I came? – Mrs. Brown.
A. you were talking to B. were you talking to C. are you talking to D. you are talking to
8. He ______ ill for a long time before he ______ in 1990.
A. had been / died B. has been / died C. is / dies D. was / had died
9. Wait here until I _______________you.
A. call B. will call C. am going to call D. am calling
10. We ______ as soon as you have finished your work.
A. will go B. go C. went D. have gone
11. While I ____________TV last night, a mouse ran across the room.
A. was watching B. am watching C. watched D. watch
12. I ______ the book by the time you come tonight.
A. will be finishing B. have finished C. will have finished D. finished