题目内容
A survey has shown that 40% of those killed in traffic accidents _____ if they had been wearing seat belts.
| A．should have been saved | B．must have been saved |
| C．need have been saved | D．could have been saved |
D
解析试题分析：考查情态动词+完成式的用法：句意：一项调查表明40%的在交通事故中丧生的人如果戴好安全带可能就能得救。用could have done表示“本来可能做却没有”，Should have done本应该做而没有，must have done一定做过…，need have done本需要做却没有做，都不符合句意，选D。
考点：考查情态动词+完成式的用法
天天向上一本好卷系列答案
小学生10分钟应用题系列答案According to the agreement, nobody _______ let out how they spent the three days in the cave.
| A．must | B．may | C．will | D．shall |
We used to work in the same office and we____ often have coffee together, which I missed so much years later.
| A．would | B．should | C．could | D．might |
--- I saw the Smiths at West Beijing Station this afternoon.
--- You __________. They are still on holiday in Hawaii.
| A．mustn't have | B．shouldn't | C．couldn't have | D．needn't |
The motorbike _____ start, no matter how hard he tried.
| A．shouldn’t | B．couldn’t | C．wouldn’t | D．mightn’t |
--- I don’t mind telling you what I know.
--- You_________. I’m not asking you for it.
| A．mustn’t | B．may not | C．can’t | D．needn’t |
The careless man received a ticket for speeding . He ____ have driven so fast .
| A．shouldn’t | B．wouldn’t | C．can’t | D．mustn’t |
— Can I pay the bill by check?
— Sorry, sir. But it's the management rules of our hotel that payment ______be made in cash.
| A．can | B．need | C．will | D．shall |
—Why are your eyes so red? You _______ have slept well last night.
—Yeah, I stayed up late writing a report.
| A．can’t | B．mustn’t | C．needn’t | D．won’t |