He often surf the Internet to keep himself informed the latest news of home and abroad.
| A．to | B．of |
| C．for | D．with |
In order to reduce air pollution, many people want a total _____on the playing of firecrackers (鞭炮)in many cities during the Spring Festival.
| A．presentation | B．promotion | C． prohibition | D．performance |
The thought of going back home was _______ kept him happy while he was working abroad.
| A．that | B．all that | C．all what | D．which |
Although medical science __________ control over several diseases,what worries us is that some of them are returning.
| A．achieved | B．has achieved | C．will achieve | D．had achieved |
---What happened to the house ?
---It_____burnt to the ground.
A is said to having been B. is supposed to have been
C is reported to have been D. is believed to have
---You must obey every word of mine!
---_______ I don’t?
| A．How if | B．What if | C．Even if | D．Only if |