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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 2 Saving the earth. Topic 1 Pollution has causestoo many problems.同步练习1

He says he the Great Wall twice.

A、has been in B、has been to C、has gone to D、has been for

举一反三

一个向左的急转弯{#blank#}1{#/blank#}

I {#blank#}1{#/blank#} (finish) my homework. Let's go out to play.

My bicycle is broken. I will have it {#blank#}1{#/blank#}(repair).

Your mother stayed up late last night. Don't ______________.

It's important _______ students _______ their homework.

Many families form close friendships with the students and {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} (保持联系) with them.

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