its name is polly为什么用its?

its name is polly为什么用its? Its name is Polly.(改为一般疑问句) It's a bird.Its name is Polly.为什么填It's和Its Its name is polly.就polly提问要改成:( )( )its name? （ ）A.This is a bird .Its name is Polly.B.This is a bird .It's name is Polly.(请选出正确一组) It's a bird.什么name is Polly A.Its' b.its c.it's d.its A.This is a bird.Its name id POLLY.B.This is a bird.It's name is POLLY.选择正确的句子. ( ) a nice bird.Its name is polly.括号里填how还是what? __________ name of his bird is Polly.A.A B.An C.Its D.The The bird's name is Polly .(改为同义句)The----- ------ the bird is Polly. That is bird polly is name 填什么 This is a parrot.____(it)name is polly. It is name is Polly.真句话哪错了? My bird's name is Polly.(对画线部分提问) 画线部分是Polly The name of Tom's bird is (Polly.提问) 用bird.the.of.name.is.the.polly组成一句话 ( ) very beautiful bird , ( )name is Polly填同音词 I have a bird .I（ ）name is Polly.