— The terrible accident is under investigation.
— Actually, quicker action _________ those workers trapped in the mine.
| A．may have saved | B．must have saved |
| C．should have saved | D．could have saved |
---When shall we meet your cousin at the station?
---His plane took off 2 hours ago, and it _________ arrive at 5pm.
| A．could | B．should | C．must | D．can |
The door ________ open, no matter how hard she pushed.
| A．shouldn’t | B．couldn’t | C．wouldn’t | D．mightn’t |
Some “healthy” habits, such as shower every day and sitting on the loo, _____ be bad for you.
| A．can | B．should | C．must | D．shall |
Since you have practiced so much in driving，there _____be any difficulty in passing the road rest.
| A．mustn’t | B．shan’t | C．shouldn’t | D．needn’t |
---Are you content with her lecture? ----Far from that. It _______.
| A．may have been good | B．couldn’t have been worse | C．can’t be better | D．must be better |
--I heard about your promotion; you ______ be thrilled.
--Not really, the new office is huge, but the workload has doubled.
| A．must | B．can | C．shall | D．will |
—Do you think the phone is genuine(真品)?
—I don’t think it ______ be a fake, as this shop has a very good reputation.
| A．must | B．might | C．can | D．would |
English is a language that many young people around the world not speak perfectly but at least understand.
| A．may; can | B．would; might | C．will; must | D．could; might |
It is usually warm in my hometown in March, but it _____ be rather cold sometimes.
| A．must | B．can | C．should | D．would |
-What life_______be like without cell phones？
-I cannot imagine it！
| A．may | B．can | C．will | D．would |
We all can feel something unusual about Kate, but she just _________ let us know what it is.
| A．shouldn’t | B．mustn’t |
| C．needn’t | D．won’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 |
—Did you visit the museum today?
—No. We _____ it, but we spent too much time shopping.
| A．could have visited | B．must have visited |
| C．could visit | D．must visit |
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