who is that boy ?回答时 主语用什么

who is that boy ?回答时 主语用什么 who is that boy?怎么回答? who is that boy over there?回答_____boy? who is that boy!回答主语用什么!拜谢! who is that little boy who is that boy?H( )is jack. 请回答这道提： who's that boy? that,the,tree,who,boy,in,is(?) that, the, tree, who, boy, in, is, Who is that boy __ brown? who is the boy? 怎么回答? who is that怎么回答 who is that?如何回答 Who is that boy?G_______,please.A:Who is that boy?B:G_______,please. Do you know_________?A.who is that boy B.who that boy is C.that boy is who D.who was he Who's that boy 用什么回答?It is …还是 He is…Is this your mother 用什么回答?yes,she is 还是 yes ,it is who is that boy talking to that girl 翻译 Is that a boy?怎样回答