题目内容
— May I smoke here?
— No, you ________. Can’t you read the sign “NO SMOKING”?
| A．mustn’t | B．won’t | C．needn’t | D．Don’t have to |
A
解析试题分析：mustn’t表示“禁止”。won’t表示“不愿”。needn’t, not have to都表示“不必”。故答案为A。
考点：情态动词。
—Isn’t Ann’s husband over there?
—No, it _____ be him — I’m sure he doesn’t wear glasses.
| A．can’t | B．must not | C．won’t | D．may not |
—I wonder why Susan looks worried today.
—I’m not sure, but she _____a small accident driving here.
| A．could have | B．might have | C．might have had | D．must have had |
So many people violate traffic regulations that we ____ put too much emphasis on the importance of traffic safety.
| A．must not | B．should not | C．need not | D．cannot |
--- Guess what! I have got A for my term paper.
--- Great! You _____ read widely and put a lot of work into it..
| A．must | B．should |
| C．must have | D．should have |
It_____ years ago when the incident took place, and I nearly forget it.
| A．would have been | B．should have been |
| C．ought to have been | D．must have been |
It is hard to say what kind of person he is．Sometimes he is very friendly; at other times he ___ be very cold．
| A．can | B．must | C．will | D．shall |
—Could you help me write the annoying composition?
—No! As a student, you _____ do it by yourself.
| A．shall | B．will | C．can | D．may |
---Mum, I hurt my leg when I climbed the tree.
--- You ___ that tall tree. I’ve told you many times.
| A．mustn’t have climbed | B．shouldn’t have climbed |
| C．couldn’t climb | D．may not climb |