4° Complete the sentences with must not or don't/doesn't have to.

Exemplo: You "must not" tell anyone. It's our secret. OK?

a. Great! I ______ get up early. I can stay in bed until eleven!

b. It's a pajama party, but you ______ wear pajamas if you don't want to.

c. The bus leaves at seven. He ______ be late.

d. My grandfather ______ pay on the bus. He has a free pass.

e. We have lots of time. We ______ run to the bus stop.

f. Your brother ______ park there. The police will tow his car away.​