Question

1. The sign at the check-in desk says: "Passengers _______ show their tickets."A. might B. may C. must D. can2. The doctor said to him: "You ______ exercise or you certainly have a heart attack again.A. must B. mustn't C. don't have to D. may

3.I___forget my key,or I won't get in.

A.must      B.mustn't       C.should         D.don't have to

4.You___go off on your own at night.It's not safe at all.

A.needn't       B.should       C.mustn't        D.must

5.The police told Nick___keep his dog under control or she would definitely hurt somebody in the room.

A.could       B.might     C.can      D.must

(GIÚP MIK VỚI Ạ,MIK ĐANG CẦN GẤP!!!!!!)

Answer 1

1. C. must.
2. A. must.
3. A. must.
4. D. must.
5. C. can.

Answer 2

1 C

2 A

3 B

4 C

5 D