1 . —_______ I take a seat here?
—No, you can’t. They are only for the old and children.

A．May

B．Must

C．Will

D．Should

2 . —Kimmy, never throw any object from the building. Even a small object _________ cause serious injuries, or death, when dropped from a great height.
—OK, I won’t do that, mum.

A．should

B．must

C．may

D．need

3 . If we don’t protect nature, some wildlife ________ die out in the future.

A．may

B．need

C．can’t

D．shouldn’t

4 . —Will Sam go to the cinema with us tonight?
—I’m not sure. He ________ not be free.

A．may

B．should

C．can

D．must

5 . —Must I finish the project now?       
—No, you ________. You ________ do it this evening.

A．mustn’t; can

B．needn’t; may

C．can’t; must

6 . — ________ I use your kettle? I’m going to boil the water.
—No problem. Here you are.

A．May

B．Need

C．Must

D．Should

7 . Don’t play with matches. It ________ start a fire.

A．must

B．need

C．may

D．should

8 . You _________ think that what you do is meaningless, but I’m sure that you’ll thank yourself for doing it.

A．shall

B．should

C．may

D．must

9 . —Mum, Jerry asked me to watch the ball game after school. Can I go along?
—You _______, but be sure to get home before 10 o’clock.

A．should

B．would

C．must

D．may

10 . —Bicycle riding is often safe.
—Yes, but you ________ have an accident if you ride too fast.

A．must

B．should

C．may