Составте 3 предложения с must, 3 с musn't, 3 с shold, 3 с sholdn't.

They must wear uniform in school.

The must turn off mobiles during the performance

The must read all this poem

The mustn't eat during the performance

The mustn't running on the road

The mustn't speak during the test

The should be careful on the road

They should sleeping more then 7 hours

They should be polite with teacher