题目内容

When guests or friends come to our home, the etiquette of____and________ teais indispensable.

A. make; serve
B. making; serving
C. made;served
D. having made; having served

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Lilys sudden__ made her parents hard to accept.

A. leaves
B. left
C. leaving
D. to leave

There's no ______ whether it will rain or not.

A. known
B. knowing
C. know
D. knew

I think it is a waste of time __ to Peter. He never answers anybody.

A. talk
B. talked
C. to talk
D. talking

It is not worthwhile your ___angry with him.

A. get
B. getting
C. got
D. to get

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