1 . —Listen! Somebody is singing in the room.
—It ________ be my sister. There will be a singing competition in her school next week.

A．shall

B．might

C．must

D．can’t

2 . Students ______ wear school uniforms on Mondays because it’s a rule in our school.

A．may

B．can

C．must

D．shall

3 . If you have a headache, I think you ________ see a doctor.

A．should

B．will

C．shall

4 . —________ we finish this task today?
—No, you don’t have to. You can finish it tomorrow.

A．Must

B．May

C．Can

D．Shall

5 . —You ________ show your health code (健康码) before you get into our school, sir.
—Oh, I see. It’s easy. Thank you.

A．must

B．may

C．can

D．shall

6 . —Look! There is a bike under the tree. Whose is it?
— It ________ be Miss Green’s. But I’m not sure.

A．shall

B．must

C．might

7 . —I wonder if these are Alice’s glasses.
—They ________ hers. She doesn’t wear glasses.

A．shall

B．can’t be

C．need

D．must be

8 . —________ your American friend eat with chopsticks?
—Yes, but he can’t use them well.

A．Can

B．Should

C．Must

D．Shall

9 . Oh, dear! Did you walk so long a way on such a hot day? You ________ be tired!

A．can

B．must

C．need

D．shall

10 . —________ we play basketball this afternoon?
—I’d love to. But I have to do my homework.

A．Shall

B．Have

C．Are

D．Do