In order not to be disturbed, I spend three days _______ in my study.
| A．locking | B．locked | C．to lock | D．lock |
The project will cost a lot of money but it will ____ the company in the long run.
| A．limit | B．harvest | C．benefit | D．celebrate |
His ____ as captain of the football team lies in his ability to gain the respect of his men.
| A．weight | B．strength | C．energy | D．balance |
Don’t take a chance! Our teachers won’t have you ____ cheating in the exams.
| A．getting away with | B．getting along with |
| C．getting rid of | D．getting interested in |
I am not feeling myself today! We ____ have drunk that much beer last night.
| A．mustn’t | B．couldn’t | C．needn’t | D．shouldn’t |
--- What ____ have happened to Kevin?
--- He might have run into some trouble.
| A．could | B．must | C．would | D．might |