In our class,when the bell rang and the teacher closed his book,i_英语解答

In our class,when the bell rang and the teacher closed his book,it was a__for everyone to stand up.
A.signal B.chance C.mark D.measure
求详解,主要是判断一下A、C.谢蛤~

人气：334 ℃　时间：2019-08-21 20:19:03

解答

正错答案选 A
signal 是发出的信号,mark 是记号,印记的意思.