问题
选择题
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
答案
答案：B
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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
答案：B