Many people agree that __________ knowledge of English is a must in _________international trade today.
| A．a; / | B．the; the |
| C．a; an | D．/; the |
—If you're free tonight, I'd like to invite you to a movie.
—That's nice of you, but are you________？
| A．rich |
| B．careful |
| C．serious |
| D．true |
Since it's raining, it would ________to stay at home and play cards.
| A．be as just well |
| B．be as well just |
| C．be just as well |
| D．just be as well |
John plays football________， if not better than, David.
| A．as well |
| B．as well as |
| C．so well |
| D．so well as |
从题中所给的A、B、C、D四个选项中选出一个最佳答案。
You can't come in without a________.
A．permission
B．permit
C．being permitted
D．permitted
You are not________to drive after drinking.
| A．agreed |
| B．permitted |
| C．offered |
| D．hoped |