I think she has many friends 变否定句::我知道否定句是:I don't think she has many friends.我想问一下为什么变否定句后has不变?

问题描述:

I think she has many friends 变否定句::
我知道否定句是:I don't think she has many friends.我想问一下为什么变否定句后has不变?