late in the morning Bob turned off the alarm.A. To sleepB. SleepingC. SleepD. Having sl

问题补充：

late in the morning, Bob turned off the alarm.

A. To sleep

B. Sleeping

C. Sleep

D. Having slept

答案：

(答案→)A. To sleep

B. Sleeping

C. Sleep

D. Having slept

解析：句意：为了在早晨睡个好觉，鲍勃关掉了闹钟。这里用动词不定式表示目的，它的的逻辑主语是整个句子的主语，其他的形式不能表示目的，故选A。