what is it? yes,it is. it is my cat. this is mary. he is my brother.

问题描述:

what is it? yes,it is. it is my cat. this is mary. he is my brother.

这是什么?是的,它是的 这是我的猫 这是Mary 他是我兄弟 应该选第二个选择what is it?A.yes,it is.B.it is my cat. C.this is mary.D.he is my brother.