Trees are good for human being. We can’t plant them __________ many.
| A．so | B．such | C．too | D．enough |
-----I’m afraid I can’t finish the novel you lent me this week.
-----___________.
| A．Please go ahead | B．That’s all right | C．Take your time | D．Not at all |
I think I must watch TV now, Dad. I _________ which team will win the game.
| A．don’t wait for know | B．can’t wait for knowing |
| C．don’t wait to know | D．can’t wait to know |
The school headmaster forbids ______ in the office.
A. smoking B. to smoke C. us smoke D. from smoking
We were listening closely to the lecture yesterday evening when suddenly the light ________.
| A．had been gone out | B．go out |
| C．was gone out | D．went out |
________ the manager has arrived, we can begin our discussion right away.
| A．If | B．When | C．Now that | D．Even if |