There seems to be a __________that the plan should be given up.

Hiking trips ________ sound exciting to most kids, but few realize they ________ be uncomfortable and even dangerous. [ ]

Sorry, I made a mistake again.—________. Practice more and you will succeed.

Someone is knocking at the door. It _______ my mother. It’s time for her to be back.

Must I go to medical school and be a doctor like you , Dad–No, you _____, son, you’re free to make your own decision.