29. A big earthquake hit Yushu, Qinghai province in the early morning, and if a little later, many more people _______.
| A．could survive | B．might have survived |
| C．must have survived | D．should survive |
I ____________ you not to move my dictionary—now I can’t find it.
| A．asked | B．ask | C．was asking | D．had asked |
Math is ___________ me. I can never get high grades.
| A．over | B．beyond | C．below | D．behind |
-The window is dirty.
-I know. It ___________ for weeks.
| A．hasn’t cleaned | B．didn’t clean | C．wasn’t cleaned | D．hasn’t been cleaned |
My friends __________ come to see me. I don’t want to go out in case they come.
| A．can | B．must | C．may | D．will |
You may drop in or just give me a call. _________ will do.
| A．Either | B．Each | C．Neither | D．All |