6. The police found that the house ________ and a lot of things ________.
A. had been broken into, has been stolen
B. has broken into, has been stolen
C. had been broken into, stolen
D. has broken into, has stolen
7. Coal can ________ to produce electricity for agriculture and industry.
A. have used B. used C. be used D. use
8. John has never dreamt of _________.
A. taken to Athens B. taking to Athens
C. be taking to Athens D. being taken to Athens
9. Nobody likes __________.
A. laughed at B. laughing at
C. being laughed at D. being laughed
10. The bridge ___________ will be completed next year.
A. built B. being built C. is being built D. building
11. It is said that tigers ________ in Asia year after year.
A. are being disappeared B. are disappearing
C. will be disappeared D. will disappear
12. I’m going to Wuhan tomorrow. Do you have anything ____
to your mother?
A. to take B. taken C. to be taken D. taking
13. Take it easy. There is nothing ______.
A. to worry B . to be worried
C. to be worried about D. to worry about
14. Your new computer will soon become outdated, because technology
_______so fast.
A. is developed B. is being developed
C. has been developed D. will developed
15. I won’t go to the party unless _________.
A. invited B. being invited
C. be invited D. inviting
16. The problem ________ last week is very important.
A. was discussed B. discussed
C. being discussed D. be discussed
17. We should keep the animals from ________.
A. be endangered B. endangering
C. being endangered D. endangered
18. There are no rivers _______out of the Dead Sea.
A. flowed B. flowing
C. being flowed D. be flown
19. This place has been destroyed. So there is no bamboo ______
for pandas to feed on.
A. left B. leaving C. leave D. be left
20. All the preparations for the task ________ , and we are ready to start.
A. completed B. complete
C. had been completed D. have been completed