.I was about to get on the bus my wife phoned me to back home at once.A. whenB. whileC. un

发布时间：2020-08-16 23:49:11

.I was about to get on the bus     my wife phoned me to back home at once.
A. when
B. while
C. until
D. after

网友回答

(答案→)A. when
B. while
C. until
D. after
解析：考查固定句型。Be about to do sth when…正要做某事在这时…(发生了意料之外的事情)；句意：我正要上车在这时我的妻子打电话给我要我立刻回家。故A正确。
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