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He hasn't enough money to buy a car,so he'll just have to do without one.为什么不能用it?

题目详情
He hasn't enough money to buy a car,so he'll just have to do without one.为什么不能用it?
▼优质解答
答案和解析
one指同一类,it指同一个.
比如:I lost my pen so I have to buy one.买到的新的和丢了的不是同一个.My father gave me a pen and I lost it.爸爸给我的就是我丢了的那个.