题干

If _______ in class, you will have to clean the classroom for a week as a punishment.
A.caught sleepingB.caught to be sleeping
C.catching sleepingD.to catch to sleep
上一题 下一题 0.64难度 单项选择 更新时间:2014-09-12 10:53:31

答案(点此获取答案解析)