新概念第二册45课课后练习第3题Sam was taking his savings to the post office he _英语解答

新概念第二册45课课后练习第3题
Sam was taking his savings to the post office he lost his wallet.
A,when B,while C.as D,just as
选择A,为什么不选择C?

人气：490 ℃　时间：2020-03-29 06:14:41

解答

因为when在这里是“就在那时的意思”,而as没有这个用法