I____ asleep because it took me a long time to realize that the telephone was ringing.
#88031
A
could have fallen
B
should have fallen
C
must have fallen
D
mustn’t have fallen
推荐题目
I don’t know why she suggested that we _____ the work before dark.
#87356
A
finishing
B
finish
C
would finish
D
to finish
But for your timely help, I ________ the project as scheduled.
#87395
A
couldn’t complete
B
couldn’t have finished
C
can’t have finished
D
can’t finish