—Another cup of coffee？That's your third since lunch. —Yeah，well，I___all night preparing for my history exam. I can hardly keep my eyes open.
A: stayed up
B: have stayed up
C: have been staying up
D: will stay up
A: stayed up
B: have stayed up
C: have been staying up
D: will stay up
举一反三
- -Another cup of coffee? That's your third since lunch.[br][/br]-Yeah, well, I___all night preparing for my history exam. I can hardly keep my eyes open. A: stayed up B: have stayed up C: have been staying up D: will stay up
- I asked the waitress to refill my coffee cup and she happily ______ repeatedly until I had consumed enough coffee to stay up all night and study for my exam. A: obey B: abided C: complied D: observance
- I will make the machine work, even if I have to _____ all night for it. A: set up B: catch up C: end up D: stay up
- I was writing a report last night; otherwise, I would not have stayed up late.
- Helen looked tired ______ she stayed up all night preparing for today’s exam. A: because B: if C: unless D: when