题目内容
—Why，I didn’t get you on the phone.
—We ________football on the playground when you phoned.
| A．must be playing |
| B．must play |
| C．must have played |
| D．must have been playing |
解析
寒假学与练系列答案You'd better not ride the bicycle on snowy days; you ______ fall．
| A．must | B．might |
| C．have to | D．ought to |
“No student,” the headteacher stressed, “_______ go out of the school after ten o’clock at night without my permission.”
| A．must | B．will | C．shall | D．may |
He have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside.
| A．should | B．must | C．wouldn’t | D．can’t |
I’m as busy as a bee；________ you bother me with so many questions now?
| A．may | B．must |
| C．can | D．shall |
I ________ use a clock to wake me up because at six o’clock each morning the train comes by my house. (2012·新课标全国，30)
| A．couldn’t | B．mustn’t |
| C．shouldn’t | D．needn’t |
—Jenny took the 8： 00 bus to Guangzhou this morning.
—Really? She ________ the 9：00 train. It's much more comfortable and safer to travel by train.
| A．could have taken | B．should take |
| C．must have taken | D．can take |
—Where did you get this book?
—I picked it up from a secondhand bookshop if you ________ know.
| A．must | B．will |
| C．can | D．shall |