Our teacher is too busy. I'm not sure _______ he will come to the party or not.

题型：单选题题类：常考题难易度：普通

仁爱科普版初中英语八年级上册Unit 4 Our World 同步单元测试卷

A、when B、that C、until D、whether

举一反三

— I think they will if they ________ free.

—Take it easy. Believe in yourself!

—Well, I'm not sure if I______ here tomorrow. But you can leave massages on my WeChat if you ______ any questions at any time.

— She told us ______.

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