—________ I watch TV now,Mom?
—No.It’s too late ,and you ______ go to bed.

–Will the new iphone cost a lot?  --I ______ think so. Apple’s products are usually expensive.

In order to speak English better, we   _   be afraid of losing face. Because the most important thing is to practice. Remember, practice makes perfect.
A. should   B. shouldn't   C. have to

— Who’s singing in the next room?
— It ____ be her . She has gone to New York.

—Peter doesn’t mind lending you his camera.
—He __________. I’ve already borrowed one.

– Whose notebook is this?
-- It _____ Tom. I saw he used it just now.
A. must belong to         B. can’t belong to         C. might be belonged to

—________ I smoke here?
—No. You are not allowed to smoke in public places.

—Must I be home before eight o’clock, Mum?　　
— No, you         . But you have to come back before ten o’clock.　　
A. needn’t       B. can’t       C. mustn’t　　

---May we go home mow ?
--- No, you____. You____ to go home until 5 o’clock.

Drunk driving is against the law now. It ______ be forbidden.