1 . Social media platforms make different voices heard, but they ______ also spread false information.

A．must

B．can

C．should

D．need

2 . 只有以这种方式我们才能更好利用网络并生活在一个更加和谐的社会之中。
Only in this way ________ we ________ ________ ________ the Internet better and live in a more harmonious society.

3 . This road is narrow and the traffic on it is heavy, so sometimes it ______ be blocked.

A．should

B．shall

C．can

D．need

4 . The principles we are finding in the fruit fly(果蝇)brain-the logic and organization-________be the same as those in human brains. (用适当的词填空)

5 . In science, facts should be proved by experiments and research, and we ______ always believe everything we read and hear -- even if it is a great story.

A．can not

B．may not

C．must not

D．should not

6 . In the film The Million Pound Bank Note, Henry Adams is stuck in a foreign country without money and friends, and with nowhere to stay. While this situation _______ seem unusual, it _______ sometimes happen to travelers.

A．may; can	B．should; must
C．would; might	D．had better; ought to

7 . As we all know, very loud noise ________ make people sick or drive them mad.

A．should

B．need

C．can

D．must

8 . His greatest skill is that he ______ cook a meal of four dishes and a soup in less than half an hour.

A．must

B．need

C．can

D．would

9 . If someone happens to have high fever and pneumonia, he or she _________ seek treatment fast.

A．must

B．needs

C．may

D．could

10 . —The 16-year-old girl has skied to both the North and South Pole, and I assume she will be able to get through the last two years of school successfully.
—Yes, I think so. I’m sure_________.

A．she can

B．she is

C．she has

D．she will