— Trees produce oxygen to fight air pollution.— Yes. They harmful gases and clean the air.

题型：单选题题类：常考题难易度：普通

初中英语牛津版（深圳·广州）七年级下学期期末测试

— Trees produce oxygen to fight air pollution.

— Yes. They harmful gases and clean the air.

A、with; take out B、against; take out C、against; take in

举一反三

—Yes, but now he's used to ________the bus.

My best friend and I have something {#blank#}1{#/blank#}.

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