should and must

Front

The weather is very hot; you………. wear light clothes.

Back

Should not

Front

 I ___________ study for my exam tomorrow. It's really important

Back

must

Front

You _____________ wear a swimming cap but some people do.

Back

needn't

Front

You ________ run in the gym. It's dangerous.

Back

mustn't

Front

You _________ exercise after a meal, or you'll be ill

Back

mustn't

Front

Tennis is very popular so you _______ book before you arrive

Back

must

Front

You ________ bring a ball. We can lend you one.

Back

needn't

Front

You _______ smoke in the changing rooms.

Back

mustn't

Front

Everyone _______ wear trainers in the gym.

Back

must

Front

I haven't got lots of money; I ________ waste it

Back

mustn't