Question

【题目】I ____ while reading the English textbook. Luckily, my roommate woke me up in time!

A. was falling asleep B. have fallen asleep

C. fell asleep D. had fallen asleep

Answer 1

【答案】C

【解析】试题分析：句意：当我看英语书的时候睡着了。幸运的是，我的室友及时叫醒了我。根据后半句可知用过去时态，排除B，fall asleep为非延续性动词，不与进行时连用，排除A，睡觉与看书应该是同时进行的，而不是发生在看书之前，所以不能用过去完成时，故选C。