Henry hears a sound.a sound划线,

题目

Henry hears a sound.a sound划线,
越快越好,
还有否定句，一般疑问句，肯定回答，否定回答，我不能老待在电脑前。

答案

What does Henry hear?
把划线处想象是未知的就有了.注意一般用倒装语序.
Henry doesn't hear a sound.
Does Henry hear a sound?Yes,he does./ No,he doesn't.
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