to go to the zoo turn left when you come to the crossroads

问题描述:

to go to the zoo turn left when you come to the crossroads
为什么要加to do?
我打错了,是为什么要加to go?
1个回答 分类:英语 2014-09-17

问题解答:

我来补答
to go 是作主语的.动词不定式可以作主语而原型不能
 
 
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