1 . --- You need to learn to control yourself when hearing the exciting news.
--- Yes, you’re right. It _________ be easy, but it _________ be done.

A．may; can

B．may; can’t

C．may not; can’t

D．may not; can

5 . —Could I hang out with my friends this afternoon, mom?
—________. But you have to finish your homework first.

A．Yes, you can

B．Yes, you could

C．No, you can’t

D．No, you couldn’t

6 . 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

7 . ________ you make so much noise, Jimmy? Your little sister is still sleeping.

A．Can’t

B．Must

C．May

D．Won’t

8 . Though the girl is really proud of having a Louis Vuitton handbag, she ________tell a fake one from a real one.

A．can hardly

B．shouldn’t

C．can really

D．mustn’t