问题补充:
We were going out for a walk it began to rain.
A. while
B. before
C. as
D. when
答案:
A. while
B. before
C. as
(答案→)D. when
解析:考查固定句型。固定句型:Be doing sth when…正要做某事,在这时(发生意料之外的事情)。When在…那时(并列连词)。句意;我们正要出去散步,在这时开始下雨了。故D正确。
时间:2020-07-26 01:07:26
We were going out for a walk it began to rain.
A. while
B. before
C. as
D. when
A. while
B. before
C. as
(答案→)D. when
解析:考查固定句型。固定句型:Be doing sth when…正要做某事,在这时(发生意料之外的事情)。When在…那时(并列连词)。句意;我们正要出去散步,在这时开始下雨了。故D正确。