“There is ______ in today’s newspaper, so you needn’t read it,” the father says to his son.

Don’t _____ so often. It’s bad for your health.—I have to. But I know I should have enough sleep.

Scientists are working hard to make _______ possible for people to live on Mars in the future.

______ are you buying so much food?—Because your uncle is coming for supper.

Be friendly and you’ll ____ well with others.