- 二一组卷

题型：单选题题类：常考题难易度：容易

牛津版（深圳·广州）2018-2019学年初中英语七年级下册Module 2 Unit 4第4课时Listening & Speaking

—We should plant more trees.

—Yes. They can take harmful gases and provide us ______ oxygen.

A、on; of B、in; with C、in; of

举一反三

They collect cards{#blank#}1{#/blank#}．

Please tell people how to{#blank#}1{#/blank#} the rubbish scientifically.

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