题目

早上王老师走进教室，同学们应该说： ( )A.Good morning, Miss Wang.B.Good morning, class.C.Good afternoon, class. 答案：【答案】A【解析】略 Guess what? I ran into a good friend of mine from _______ I was at kindergarten just now!        A．how           B．whom       C．when    D．which