You must be tired now. Why not ________ to have a rest?

Look! So many passengers________ with their phones on the underground.

Some students often drop litter carelessly in our school. What can we do?- We can _______ some signs to remind them not to do that again.

Peter has good grades in all his subjects, but he never shows off.—-I agree. He is very ________.

Rose, you leave your school things on the floor like this. Keep your room clean and tidy.