my pen is broken 的同意句（3句） it is a nice pen变感叹句（3句）
问题描述：
my pen is broken 的同意句（3句） it is a nice pen变感叹句（3句）
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答
my pen doesn't work.
there is something wrong with my pen.
how nice the pen is!
what a nice pen!
what a nice pen it is!