–Carla _______ go to that historical museum after school when she was a teenager.
--No wonder she is so familiar with it.
| A．could | B．should | C．might | D．would |
—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 |
According to the newly-made traffic regulation, whoever drives through red lightbe fined at least 200 dollars．
| A．shall | B．may | C．would | D．should |
---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 |
I was really anxious about you. You____ home without a word.
| A．mustn’t leave | B．shouldn’t have left | C．couldn’t have left | D．needn’t leave |
I _______ thank you too much for all your help to my son while we were away from home.
| A．won’t |
| B．can |
| C．can’t |
| D．will |
--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 |
It is usually warm in my hometown in March, but it _____ be rather cold sometimes.
| A．must | B．can | C．should | D．would |
— Can I go now, sir?
— If you _______ leave, do it quietly.
| A．will | B．may | C．shall | D．must |
Reading for fun means much to us and we _______ never tell where its influence stops.
| A．must | B．need | C．can | D．should |
No driving after drinking is a rule that every driver ______ obey in our country.
| A．will | B．shall | C．may | D．can |
I would persuade her to make room for you ______it be necessary.
| A．could | B．might | C．should | D．would |
The findings support another study which showed that being happy ______ reduce the risk of heart disease.
| A．need | B．shall | C．must | D．can |
I have told you the truth. I keep repeating it?
| A．Can | B．Must | C．May | D．Will |
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