改错 what do you think is he busy doing
题目
改错 what do you think is he busy doing
答案
what do you think he is busy doing
he is busy doing 不用调整语序 这个结构不是疑问
举一反三
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我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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