I was about to leave the office the telephone rang．So I stopped it．A.when; to an
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I was about to leave the office ______ the telephone rang．So I stopped ______ it．
A.when; to answer
B.when; to reply
C.while; answering
D.as; replying
试题答案
B
考查短语搭配。be about to do sth. when...是固定搭配,"正要做某事时,....发生了"；stop to do停下来做。句意：我正要离开办公室的时候，突然电话响了。因此我停下来接它。