I am talking to my friend 划线句子提问I am talking to (my friend划线的 )划线句子提问 还有 HIS brother is （wahching tv划线的 ）对划线提问.
问题描述：
I am talking to my friend 划线句子提问
I am talking to (my friend划线的 )划线句子提问 还有 HIS brother is （wahching tv划线的 ）对划线提问.
答
1.第一句对人物提问，用who，又因为此句中的任务做宾语，还可用whom
who are you talking to ?或者whom are you talking to ?
2.第二句对正在做什么提问，须用提问词what
what is his brother doing ?
答
1.Who are you talking to? 或者：Whom are you talking to?
这个疑问副词做宾语，应该用宾格，who既可以做主格也可以做宾格，whom是who的宾格形式。
2：What is his brother doing？
进行时的特殊疑问句。
答
Who are you talking to?
Who is watching TV?
答
Who are you talking to ?
What does his brother doing?