题目内容
My sister met him at the Grand Theatre yesterday afternoon，so he ________ your lecture.
| A．couldn't have attended | B．needn't have attended |
| C．mustn't have attended | D．shouldn't have attended |
A
解析“情态动词＋完成式”有各自的含义。must have done表示对过去事情的肯定推测，多用于肯定句中；needn't have done表示过去本不必做的事情；shouldn't have done表示过去做了不该做的事情；can't(couldn't)have done表示对过去的否定性推测，意为“不可能”。所提供的情境My sister met him at the Grand表示他不可能参加讲座。
智趣寒假作业云南科技出版社系列答案(2013·辽宁，31)Harry is feeling uncomfortable.He________too much at the party last night.
| A．could drink | B．should drink |
| C．would have drunk | D．must have drunk |
—Is John coming by train.
—He should，but he ________ not.He likes driving his car.
| A．must | B．can | C．need | D．may |
It’s said that there’re plenty of hotels in that town. There ______ be any difficulty for you to find somewhere to stay today.
| A．wouldn’t | B．mustn’t | C．shouldn’t | D．needn’t |
You ________ in person; a telephone would have been enough.
| A．couldn’t have come | B．needn’t have come |
| C．shouldn’t have come | D．mustn’t have come |
(2013·江西九江二模)If you won't do as I tell you, you ________ get the chance to be promoted because the competition is just too fierce.
| A．couldn't | B．mustn't |
| C．shouldn't | D．shan't |
(2013·高考陕西卷)The children________lost in the woods；otherwise，they would have been at the lakeside camp as scheduled.
| A．must have got | B．must get |
| C．should have got | D．should get |
—The similarities between social networks are striking.
—That ________ come as no surprise，because they are all products of the Internet.
| A．should | B．shall | C．may | D．must |
(2013·合肥一检)According to the rules and regulations, all payments ________ be made in cash in the shopping center.
| A．shall | B．can |
| C．must | D．should |