Let me help you,may I

问题描述:

Let me help you,may I
Let me help you,
I thought he was a teacher,
两者的反义疑问句怎么做?
I known your father is a worker, isn't he?
②He has gone to America since two days ago, hasn't he?
反义疑问句用的对吗?

Let me help you,will you?
I thought he was a teacher,wasn't he?
I know your father is a worker,isn't he?对
He has gone to America since two days ago,hasn't he?对 但句子本身有问题,has gone to America since two days ago用在一句中的