—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 |
推荐套卷
—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 |