4.Some villagers say that they_________________(see)UFOs many times.

3.I ____________________(paint) the wall the whole morning, so I am extremely tired.

2.No evidence of life___________________(discover) on any of the plants so far.

1.For the last two years, he ____________________(write) a book on the Second World War, but he _______________(not finish) it yet.

23.It was obvious that the man_______ driving on the free way for almost an hour when he ______that he must come back.

A.　 was ; told　　 B. had been; was told　 C. had been; told　 D. was ; was told

六。动词时态填空

22.. They ____ on the program for almost one week before I joined them, and now we ____ it as no good results have come out so far.

A. had been working; are still working 　　B. had worked; were still working　　　　　　　　　

C. have been working; have worked　　　 D. have worked; are still working

21.. He took part in the activity with an ____ look.

A. interest　　　　 B. interested　　　　 C. interesting　　　 D. interestedly

20.He has ______ great interest in history, especially in _______ history of Tang Dynasty.

A. a; the　　 B. a;　 /　　 C. /; the　　　 D. /;　 a

19. ---- You have agreed to go, so why aren’t you getting ready?

　 ----- But I ______ that you _____ me to start at once.

A. don’t realize; want　　　　　　　 B. don’t realize; wanted　　

C. haven’t realized; want　　　　　 D. didn't realize; wanted

18. ----- ______ you ______ anything unusual about our computer?

　 ------ Not within the last three days.

　 A. Do; find　 B. Did; find　　　 C. Have; found　　 D. Are; finding