----Another cup of tea? That’s your third since lunch. ----Yeah, well, I ____ all night preparing for my history exam. I can hardly keep my eyes open.
#100513
A
have stayed up
B
stayed up
C
have been staying up
D
will stay up
推荐题目
All the work ______ ,and we are going to leave..
#103928
A
complete
B
completing
C
have completed
D
has been completed
With the rapid development of medical science, we ___ more new drugs used in the treatment of cancer．
#100437
A
see
B
had seen
C
will be seeing
D
would see
“What place is it?” “Haven’t you found out we _____ back where we ______?”
#104182
A
were, had been
B
have been, are
C
are, were
D
are, had been
Is this the first time that you _____ here?
#103342
A
visit
B
are visiting
C
had visited
D
have visited
The room _______ very useful when we had visitors.
#101127
A
was proved
B
has been proved
C
has proved
D
proved