“Have you ever travelled by plane?” she asked me.

→ She asked me if / whether I had travelled by plane.

③ 反意疑问句

用if/whether连接，例：

He asked，“You are a doctor， aren’t you?”

→ He asked (me) if / whether I was a doctor.

④ 特殊疑问句

由原疑问词连接(如疑问代词是主语，不要改变语序)，例：

He asked, “Who will come to help us?”

→ He asked who would come to help them.

She said, “Where have you been， Simon?”

→ She asked Simon where he had been.

⑤ 选择疑问句