题目内容
We ________ jump to conclusions before we have all the facts.
| A．couldn't | B．mightn't | C．shouldn't | D．mustn't |
C
解析
—Can I pay the bill by check?
--- Sorry, sir. But it is the management rules of our hotel that payment ____ be made in cash.
| A．shall | B．mustn’t |
| C．can’t | D．will |
—I’m afraid you missed a fantastic lecture yesterday. How come you were absent from it?
—If you _______ know, I asked for a day off and visited a relative of mine in hospital.
| A．might | B．may | C．shall | D．must |
---- What are you going to do this weekend?
---- I don’t know. I go to Beihai Park.
| A．must | B．would | C．should | D．might |
Keep up a good state of mind even if you ______ fail plenty of times.
| A．should | B．will | C．must | D．need |
My computer ____start, no matter how hard I try.
-lt might have crashed.
| A．won't | B．shouldn't | C．mustn't | D．wouldn't |
(2014·济南市名校第四次诊断性测试)—Is the letter from your mother?
—Yes.But she ________the letter herself，because she doesn’t even know one word.
| A．needn’t have written | B．can’t have written |
| C．might not have written | D．should not have written |
Even students of average intelligence ________ become top students by improving their study habits.
| A．must | B．can |
| C．have to | D．ought to |