题目内容
— Shall I go and buy two more bottles of beer?
— No, I’ve already bought twenty. That _____ be enough for us two.
| A．can | B．may | C．ought to | D．might |
C
解析
The haze or smog was so serious that the winter running _________.Some students complained as they ran
| A．could have cancelled | B．should have cancelled |
| C．must have been cancelled | D．ought to have been cancelled |
It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off．
| A．may | B．can | C．will | D．shall |
—The research on the new flu virus vaccine is challenging and demanding. Who do you think can do the job?
—________ my students have a try?
| A．May | B．Must |
| C．Will | D．Shall |
—A shy boy like John ________ give up a secure job and start his own business!
—Yes，nobody had expected that.
| A．would | B．should | C．might | D．could |
—Where did you get The Frog written by Mo Yan?
—I picked it up from a bookshop online if you ________ know.
| A．must | B．will |
| C．can | D．shall |
—Hi，Joan.Any idea where Tom is?
—He ________ on the playground.I saw him there playing football just now.
| A．shall be | B．should have been |
| C．must be | D．might have been |
Mary ____ be in Paris . I saw her a few minutes ago .
| A．mustn''t | B．shouldn''t | C．can''t | D．may not |
(2013·江苏南通市二模)We ________ have hurried all the way to the airport — the flight was called off because of the foggy weather.
| A．mustn't | B．couldn't |
| C．needn't | D．wouldn't |