I ______ while reading the English textbook. Luckily, my roommate woke me up in time !
A．had fallen asleepB．have fallen asleepC．fell asleepD．fall asleep
C
根據(jù)woke(wake 的過去式)可以判斷，這里談論的與“現(xiàn)在”無關，因此可以排除B和D兩項。I是在讀書期間睡著的（while reading）,而不是在之前睡著的，所以A項也是不恰當?shù)摹?/div>
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