Heismybrother,
1.Heismybrother对mybrother提问是Whoishim还是Whoishe.为什么?
2.Myuncleisadoctor
对adoctor提问是whatdoesyouruncledo还是whatisyouruncledo‘Myuncleisadoctor’中不是有is吗?
3.Perter'sballisbule.对Perter's提问?是不是whoballisblue.
为什么?