they are working hard 什么(work )out the problem
问题描述：
they are working hard 什么(work )out the problem
2,have the police proved his (criminal)?
3,l s什么 wang jun will get the award
4,the cow on the ground was still b什么,so we knew it was still alive
答
to work
不定式作目的状语
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祝学习进步谢谢，其他的呢2. crime 3. swear4.breathing