We were to go out for a walk it began to rain. A. while B. before C. as D. when
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33. We were to go out for a walk ________ it began to rain.
A. while B. before C. as D. when
试题答案
D

33. We were to go out for a walk ________ it began to rain.
A. while B. before C. as D. when
D