．If I _________too late last night, I could not have fallen asleep in class.
#103799
A
didn’t stay up
B
hadn’t stayed up
C
don’t stay up
D
haven’t stayed up
推荐题目
When you are at home，give a call to let me know you safely．
#100432
A
are arriving
B
have arrived
C
had arrived
D
will arrive
Following the successful Beijing Olympics，Nanjing________70 million people for the 2014 Youth Olympic Games.
#99191
A
expects
B
is expected
C
is expecting
D
has expected
I have to see the doctor this afternoon because I ____ a lot lately.
#99964
A
have been coughing
B
had coughed
C
coughed
D
cough
Mr Smith ______ a book about China last year but I don’t know whether he has finished it.
#103700
A
has written
B
wrote
C
had written
D
was writing