—Tom， you look so tired. —Oh,I didn’t go to bed_____ it was 12 o’clock last night. A. unless B. after C. until D. as
A.A
B.B
C.C
D.D
正确答案是C
—Tom， you look so tired. —Oh,I didn’t go to bed_____ it was 12 o’clock last night. A. unless B. after C. until D. as
A.A
B.B
C.C
D.D
正确答案是C