题目内容
用所给词的适当形式填空
People often shake hands when ________(introduce)to each other.
答案:introduced
解析:
解析:
当被介绍的时候
练习册系列答案
相关题目
题目内容
用所给词的适当形式填空
People often shake hands when ________(introduce)to each other.
当被介绍的时候