11. ______ a good many hotels and restaurants ______ in the city of Beijing.
A. In the past ten years; have built
B. In the past ten years; have been built
C. During the past ten years; have built
D. In the past ten years; built
10. These chips have reduced the size of the computer many times, thus ______ a new generation of minicomputers.
A. create B. created C. creating D. to create
9. ----Has Sam finished his homework today?
----I have no idea. He ____it this morning.
A. did B. has done C. was doing D. had done
8. A large number of Jules Verne’s books are believed _______in the world, but the exact number is not known yet.
A. to have been sold B. to have sold C. to be sold D. to have been sell
7. ----Is it that the spaceship will be launched within this week?
----No, I don't think so.
A. probably B. perhaps C. possibly D. likely
6. The situation in Iraq is so dangerous that our government has ______ the workers ______ there.
A. forbidden, to go B. demanded, not to go
C. kept, going D. required, not going
5. The old man, ______ abroad for twenty years, is on the way back to his motherland.
A. to work B. worked C. to have worked D. having worked
4. The speaker raised her voice a bit but still couldn’t make herself _______.
A. hear B. to hear C. heard D. hearing
3. ____ good, the food was soon sold out.
A. Tasted B. Being tasted C. Tasting D. Having been tasted
2. My cousin is old enough ______ himself.
A. to wear B. to put on C. to dress D. to have on