英语26.I ______ while reading the English textbook.Luckily,my roommate woke me up in time!26.I ______ while reading the English textbook.Luckily,my roommate woke me up in time!a.had fallen asleep b.have fallen asleep c.fell asleep d.fall asleep为什么

问题描述:

英语26.I ______ while reading the English textbook.Luckily,my roommate woke me up in time!
26.I ______ while reading the English textbook.Luckily,my roommate woke me up in time!
a.had fallen asleep b.have fallen asleep c.fell asleep d.fall asleep
为什么