— Mum, where should I put the plastic and paper?— I think you'd better separate _____ into different groups first.

题型：单选题题类：模拟题难易度：普通

江苏省太仓市实验中学2018届九年级中考英语调研测试卷

— Mum, where should I put the plastic and paper?

— I think you'd better separate _____ into different groups first.

A、they B、them C、their D、theirs

举一反三

—No, it isn't. _______ is over there under the tree.

—No, ________ aren't.

—Yes, there are ________.

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