. With examinations coming immediately, you ________ the Internet last night.
| A．mustn’t surf | B．shouldn’t surf |
| C．couldn’t have surfed | D．shouldn’t have surfed |
— I've never found a better job.
—____.
| A．I don't think so | B．Too bad | C．Congratulations | D．Don't worry |
It requires ____ your willingness to do the job. It also requires a lot of mental effort.
| A．less than | B．more than | C．fewer than | D．nothing than |
When ____ help, one says "Thank you" while when _____ help, one asks "Can I help you?"
| A．ffered; offered | B．ffering; offered | C．offering; offering | D．offered; offering |
The key point is not who said the words,______ they are true or not.
| A．but whether | B．and whether | C．but how | D．and how |
As I know, it is five years since Mary ____ in the south.
| A．lives | B．lived | C．has lived | D．was living |