My watch doesn't work well.I don't know the reason.(合并为一句)

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/25 04:47:17

My watch doesn't work well.I don't know the reason.(合并为一句)
I don't know --------- my watch doesn't work well.

the reason why
再问：只能填一个词呀
再答：那就填 why就可以了表示原因要用why 直接填why 这是个宾语从句
再问：可以直接用why吗，老师说不能啊，答案给的是that，我不明白
再答：可以啊 why 可以引导宾语从句 I don't know why he broke off in the middle of a sentence. 我不知道他为什么说到半中腰就停止了。

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