1 . — Why don’t you enter the office? They are waiting for you.
— The door ________ open, no matter how hard I pushed.

A．won’t

B．can’t

C．mustn’t

D．needn’t

4 . 从方框中选择恰当的单词或短语填入句子中，注意使用其正确形式。

complain        affect        symbol        abandon        potential       approve of         take up             regardless of               be at risk        on the contrary

1. —I suppose your parents don’t understand you.
—________， they understand me very well
2. Your attitude will ________how successful you are.
3. The chess club welcomes all new members________ age.
4. Chris wants to keep fit， so he ________jogging every morning.
5. Because I’m nearsighted， I’m worried that my daughter will ________ for it too.
6. Forming a V with your fingers is often recognized as the ________ for victory.
7. If you're unhappy with the room service， you should ________ to the manager.
8. Because of the heavy snow， we had to ________ the car and walk the rest of the way.
9. My parents need to know exactly where I plan to go before they can ________my trip.
10. Doctors are excited about the new drug's ________ benefits because it may save more lives.

6 . Every morning he________have a walk along this river.
每天早晨，他总是沿着小河散步。

8 . —Make sure that the door is fastened       you go to bed.
—But the door just ________close.

A．while；doesn’t	B．before；won’t
C．after；won’t	D．during；doesn’t