Chọn thì thích hợp nhất để hoàn thành các câu sau: 19. There ______________ no rule about the movement of traffic before the Pope came to visit Paris.

Chọn thì thích hợp nhất để hoàn thành các câu sau:
19. There ______________ no rule about the movement of traffic before the Pope came to visit Paris.
A. has been B. was C. had been D. is
20. The King just ____________ here yesterday.
A. had come B. comes C. has come D. came
21. While I ________________ along the road, I saw a friend of mine.
A. cycled B. was cycling C. had cycled D. were cycling
22. It is the largest ship I______________
A. had seen B. saw C. have ever seen D. see
23. I ________________ ghost in my life.
A. has never seen B. never saw C. had never seen D. have never seen
24. Mary ____________ an hour ago.
A. phoned B. has phoned C. phones D. was phoning
25. The light went out while I _______________dinner.
A. has B. was having C. am having D. had
26. This is the house that Jack ______ three years ago.
A. was building B. builds C. had built D. built
27. He ___________ the effects of radiation when he suddenly died
A. was studying B. studied C. had been studying D. has studied