Is this your boy friend?Is this boy your friend?Is this your

Is this your boy friend?Is this boy your friend?Is this your Is this?your friend is Is this girl your friend?Is this your girl friend? this boy is my friend Is this your friend?怎么回答 Is this your friend?改为复数形式 Is this girl your friend 复数句 Is this your friend?做否定回答 .Is this girl your friend?(否定回答) Is this boy your brother作回答 is this your friend?yes,()is .A.this B.t 这些怎么回答?Is this your son?Is this boy your son?Is Tom your son