I go to bed the telephone rang.A. was about to whenB. was going to whileC. would when

问题补充：

I go to bed the telephone rang.

A. was about to, when

B. was going to, while

C. would, when

D. was to, while

答案：

(答案→)A. was about to, when

B. was going to, while

C. would, when

D. was to, while

解析：考查时态及固定短语。句意：当电话响起时，我正要睡觉。When当……时，时间上有先后；while当……时，强调动作同时发生；be going to 和be about to都表示将要发生的动作，结合语境可知两个动作的发生有先后顺序，故选A。