______ he is doing an operation on a patient; please don’t disturb him.
| A．Right away |
| B．Right now |
| C．In no time |
| D．At once |
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 |
If you want to catch your flight, you’d better ____ for the airport right now.
| A．cut off | B．cheer up | C．set off | D．settle down |