I don't believe he has come up with a good solution to this problem so far,___?

问题描述:

I don't believe he has come up with a good solution to this problem so far,___?
请问反义疑问句怎么写?

has he
don't 中的 not 是否定从句中 has 的 即hasn't come up with ,所以
用has he
而如果从句中没有has 的话,即not 否定的是 comes 的话 ,这时候才用
does he