before doing和before to do
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before doing和before to do
![before doing和before to do](/uploads/image/z/4782543-15-3.jpg?t=before+doing%E5%92%8Cbefore+to+do)
efore 一般做介词和连词用.做介词时后面跟名词动名词;做连词时后面跟句子,似乎没有楼主说的before to do.楼主有完整的句子吗?
再问: before do和before doing又有什么差别呢??
再答: do是动词,自然也不能跟在before之后的。
再问: before do和before doing又有什么差别呢??
再答: do是动词,自然也不能跟在before之后的。
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