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 poemThe mustn't eat during the performance The mustn't running on the road The mustn't speak during the testThe should be careful on the roadThey should sleeping more then 7 hours They should be polite with teacher