Should and Shouldn't

She can't sleep . She .......... drink milk before sleeping.

• should
• shouldn't

Roads are icy. You .......... be careful.

• shouldn't
• should

You .......... stay up late the night before exams.

• should
• shouldn't

You .......... always tell the truth.

• shouldn't
• should

You .......... be rude to old people.

• should
• shouldn't

Students .......... make noise in the class.

• shouldn't
• should

It's very hot here. You .......... open the window

• shouldn't
• should

He is tired. He .......... have a rest.

• shouldn't
• should

We .......... protect the environment.

• should
• shouldn't

We .......... use electricity carefully.

• should
• shouldn't