----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
(2013·山西高三诊断)—Oh, God! Somebody ________ the cup.—It wasn't me. I didn't do it.
#99608
A
was breaking
B
is breaking
C
has broken
D
had broken
The Chinese government has made great efforts to ______ the gap between the rich and the poor, but has not achieved obvious results.
#100842
A
abolish
B
conduct
C
drag
D
narrow
Everything he _____ to his country.
#103067
A
had was contributed
B
had been contributed
C
had to be contributed
D
had contributed