He seems to have know the secret/ I happened to be there这两个句子的反义疑问句怎么说

问题描述:

He seems to have know the secret/ I happened to be there这两个句子的反义疑问句怎么说
It seems that he has known the secret, hasn't he?
这个句子对吗?

He seems to have know the secret/ I happened to be there这两个句子的反义疑问句怎么说
He seems to have know the secret,doesn't he?
I happened to be there,didn't me?
It seems that he has known the secret, hasn't he?
这个句子对吗?对