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what在从句当中的用法请问这两个句子那个对?1.iwanttoknowwhatisthedifferencebetweenaandb.2.iwanttoknowwhatthedifferencebetweenaandbis.

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what在从句当中的用法
请问这两个句子那个对?1.i want to know what is the difference between a and b.2.i want to know what the difference between a and b is.
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答案和解析
第二句对
通常,what is XXX 是疑问句,what XXX is 是陈述句
注:what 也可换成同系列的who,where,why,when,how
例:Why are you still watching TV instead of doing homework?可转换成 I don't know why you are still watching TV instead of doing homework.