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 |
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 |