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题型：单选题题类：常考题难易度：普通

仁爱科普版九年级上Unit 4 Amazing ScienceTopic 3 China is the thirdnation that sent a person into space.同步练习

Many modem factories by computer, so their products are more excellent.

A、mainly control B、are main controlling C、are main controlled D、are mainly controlled

举一反三

––Have you returned the book to the library _______?
––Yes, I have _________ returned it.

Linda, there is only a little time left. We have to walk {#blank#}1{#/blank#} (quick).

—What are you going to do this weekend?

—I can't decide I will go shopping.

Tom studies _______.He _______plays with his friends.

Lingling hasn't been to Shanghai. Mingming hasn't been there, .

Sleeping is a good thing, but some people sleep____________.

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