This sentence is difficult to understand.Can you make        of it?
#84468
A
idea
B
knowledge
C
sense
D
understanding
推荐题目
 I _____ while watching the movie 2012 last night. Unluckily, my roommate woke me up. 
#73851
A
had fallen asleep
B
have fallen asleep
C
fell asleep
D
fall asleep
— I’ll come to see your performance at 9:00 tomorrow evening.— Sorry, but by then my performance _______ and I ______ reporters in the meeting room. 
#72700
A
will have ended; will be meeting
B
will end; will meet
C
will be ended; am going to meet
D
will have ended; will meet