第1个回答 2015-11-20
He wants to know when does Tom do his homework？这句话错在从句when does Tom do his homework？这里。应该使用陈述语序，即改成He wants to know when tom does his homework.
第2个回答 2015-11-20
宾语从句中的语序错了。正确如下：
He wants to know when Tom does his homework.
第3个回答 2015-11-20
像这种情况，后面when 引导的从句，不需要特殊疑问句形式，不需要助动词提前进行提问。
直接写成：he wants to know when Tom does his homework ?即可本回答被提问者采纳
第4个回答 2015-11-20
这是陈述语句，后面的时间状语从句也应该是陈述语句。
应该修改为：
He wants to know when Tom does his homework.