Who's this?A This is … B It's … C He's …应选哪一个好,为什么?

Who's this?A This is … B It's … C He's …应选哪一个好,为什么? who is that?A.That's a student B.It's Bob C .This is Bob Jenny ,_______Mr.Zhang .A.it's B.this's C.it .D.this is（为什么） What's this?This is _____"N".A.a B.an C./ 选择哪一个?为什么? 英语选择题：Who's that? ( ) is Lucy. A This B It C That D She's ＿＿is this book?－it's Tina's. A.who B.whose C. ( )bike is this ? It's ( ) A where mine B Who's mime C Which ( ) bag is this it's so beautiful.A.Who's B.Whose C.What D.W ----his sister. A.He's B.this's C.that's D.who's 选择题What's this?A.It's Z.B.It's red.C.This is ruler. --who's this in the picture?--Is __ Tom?A he B it C that D t A:______pen is this?B:It's Wang fang's.A.Who's B.Whose