河南成教 / 综合英语(二)
正确率:100%
34、
A. must stay up late
B. must have stayed up late
C. was staying up late
D. has stayed up late
He looks so tried this morning. He _ _ _ _ last night.
A. must stay up late
B. must have stayed up late
C. was staying up late
D. has stayed up late
参考答案: