We have a lot of work tomorrow. You ....... be late.

• can't

• mustn't

• don't have to

I ............... clean the floor today because I cleaned it yesterday.

• don't have to

• can't

• mustn't

You ............ eat too much cake or you'll get fat!.

• don't have to

• mustn't

• can't

He .............. cook tonight because he's going to a restaurant.

• can't

• mustn't

• doesn't have to

They ............. get up early today, because it's Sunday.

• don't have to

• mustn't

• can't

You ............. smoke inside the school.

• can't

• mustn't

• don't have to

The museum is free. You ............pay to get in.

• can't

• don't have to

• musn't

He's amazing, he ............. speak five languages, including Chinese.

• has to

• must

• can

Julian ............... play excellent golf when he was only ten.

• can

• could

• can't

Gill ............. play the piano. She has never studied it.

• could

• can't

• couldn't