帮我改下,

帮我改下,

题目
帮我改下,
the boy read an interesting book(一般疑问句)
students must follow school rules (一般疑问句,否定句)
we cleaned the classroom his afternoon(what改写)
答案
Does the boy read an interesting book?
students mustn`t follow school rules.
What did you clean this afternoon?
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