问题描述：
用适当的人称代词填空：1.This is ______(I)book,that is_____(she).
2.These are______(they)flowers.3.______(she)brother is six,but_____(l) is sevsn.
2.These are______(they)flowers.3.______(she)brother is six,but_____(l) is sevsn.
问题解答：
我来补答展开全文阅读