Persons under 18 _____ not be employed in night work in the US.

Peter is late for class, but he shouldtake the test at once. —__________. He should take the test after class.

My mother hopes you_______ to my home.

There is a saying, yesterday is history,tomorrow is a mystery. But today is ___ gift. That is why it’s called___present.

This wall of air is an effective answer to the problem and it ________ work.—But it is a question to put such a wall of air around the statue. [ ]