题目内容
.If I _________too late last night, I could not have fallen asleep in class.
| A.didn’t stay up | B.hadn’t stayed up |
| C.don’t stay up | D.haven’t stayed up |
B
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.If I _________too late last night, I could not have fallen asleep in class.
|
A.didn’t stay up |
B.hadn’t stayed up |
|
C.don’t stay up |
D.haven’t stayed up |