问题
选择题
I was just about to leave ______the telephone rang.
A．while
B．as
C．before
D．when
答案
答案：D
考查固定搭配：be about to do when…刚要做…这时，句意是：我刚要离开这时电话响了。选D。
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I was just about to leave ______the telephone rang.
A．while
B．as
C．before
D．when
答案：D
考查固定搭配：be about to do when…刚要做…这时，句意是：我刚要离开这时电话响了。选D。