it is a boy?

it is a boy? You exactly is it a boy or 改错：it is that a boy? it is certainly a good boy He is a boy?He is a boy?和It is a boy?哪个是对的 it is a clever boy(改为感叹句） ______ ______the boy is! One boy is a boy It is a quite lovely boy.这个句子对吗 is it a boy or a girl不是it不指的,为什么这里能用IT Your clasemate is a boy ,isn't it?该句中“it”应用it还是he? 孩子的英语作业他是男孩译成It is a boy.或He is a boy应该选择哪一个 He is a boy you is a boy? John is a ( ) boy. A boy is always a boy. It reveals the plain fact that he is a boy,isn't it?这句话对么? he is a ___(able) boy .It is difficult forhim to swim quickly it is cold,but the boy is wearing a( ) and( )怎么写?