高等继续教育 / 专科英语II
正确率：100%
题型描述: 单选题
Unfortunately, the monitor had to ＿＿＿＿＿＿ of the race at the beginning.
A.drｏp off
B.drｏp out
C.drｏp down
D.drｏp in
Unfortunately, the monitor had to ＿＿＿＿＿＿ of the race at the beginning.
A.drｏp off
B.drｏp out
C.drｏp down
D.drｏp in
参考答案：
佳题速递：