AJUDA!!!




Fill in the blanks using MUST / MUSTN'T or DON'T HAVE TO:

1) Passengers on a bus.....................smoke. It is against the law. *
A)must
B)mustn't
C)don't have to

2) Drives ...............wear sunglasses for driving. They make it easier to see, but they're not necessary. *
a)must
b)mustn't
C)don't have to

3) Motorcycle riders........... wear helmets.That's the law. *
A)must
B)mustn't
C)don't have

4) In Brazil, a driver........... wear a seatbelt. *
a)must
B)mustn't
C)don't have to

5) When people are putting gasoline in their gas tank, they ...............smoke. It's forbbiden. *
a)must
b)mustn't
c)don't have to​