以下两句都正确吗?this is that he buys for his son.this is what he bu

以下两句都正确吗?this is that he buys for his son.this is what he bu He buys a shirt for his son 的同义句 Look,that is Mary .( )(He/She)is my friend.This is( )(His/He What is the reason that he gave for this?为什么是定语从句啊 This is John,my nephew.He is my ()son A man love a girl as his sister,but he is a only son.This lo This is the book for which he is looking 这句话正确吗? This is not he shirt.His is blue This is not his shirt.He is He buys what his son wants这句话有语病吗 This a watch.That is his brother.He is a boy.She is a Chines this is ------(he)box ,that ,s -----(you) This is what he _______(think)