Use the must and should

I don't think people should smoke is bad for the health.

You shouldn't wait more time, It's late.

She should go to the doctor is better for she.

We should study, because tomorrow we'll take the exam.

They should buy this car, It look comfortable.

I should visit my friend next monday.

You must pay attention in your English class, If you want to learn.

She must clearn her bedroom.

We must'n speak France in our class the Spanish.