They don‘t know what they can do.(同义句) They don‘t know what _____ _____ .
问题描述：
They don‘t know what they can do.(同义句) They don‘t know what _____ _____ .
答
They don‘t know what they can do.(同义句) They don‘t know what __to___ __do___ .
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O(∩_∩)O，互相帮助，祝你好运！O(∩_∩)O
答
they don't know what to do
答
答案：
to do