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题型：单选题题类：常考题难易度：困难

——Is the boy ______ is _______ food and clothes over there a volunteer?

——Yes. He is very kind.

A、which; set up B、that; put out C、whom; handing out D、who; giving away

举一反三

—Do you believe that paper is made _____wood？

—Yes. I do. And you can see that books are made _____paper.

It's common _______ us to use cell phones and computers.

你最好不要熬夜，这样才能保持健康。(stay up)

He used to {#blank#}1{#/blank#} (sing) very well.

This is the most exciting match ______________ I have ever watched.

My pet dog is very clever. It can help me {#blank#}1{#/blank#} (make) the bed.

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