People ______ drive after drinking wine or beer according to the new laws.

Some frightening pets _________ be kept home so that they won’t hurt others.

My grandparents never remember my telephone number, and they always _______ look it up.

____ he _____ get up early?

—Could I keep this book for another week?
—Of course you        .

—Must I park my car behind the cinema?
—No,you     ．You      park it here

---Must Jack come to sign his name on the paper?
---Yes, he_____ .

---Must we leave the classroom now?
---No, you _____. You _____ leave after the bell rings.

---Is the girl in the red skirt your sister?
---No. It _______ be her. She has flown to Australia.

— Do you know whose magazine is it?
— I think it         be Lily’s, for we can find her name on the cover.