________ late in the morning,bob turned off the alarm ATo sleep BSleeping CSleep DHaving slept答案是B,有人说选A解释

问题描述:

________ late in the morning,bob turned off the alarm ATo sleep BSleeping CSleep DHaving slept
答案是B,有人说选A
解释

应该是A吧,不定式表目的
答案有时候也会错的