should and must

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

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

You _____________ wear a swimming cap but some people do.

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

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

Tennis is very popular so you _______ book before you arrive

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

You _______ smoke in the changing rooms.

Everyone _______ wear trainers in the gym.

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