I think QQ is an invention ________ can help us communicate with others on line freely. A.what B.whi...
2022-08-15 21:25:12 23次 2019年湖北省孝感市中考一模英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
I think QQ is an invention ________ can help us communicate with others on line freely.
A.what B.which C.whose D.who
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