问题补充:
If in class, you will have to clean the classroom for a week as a punishment.
A. caught sleeping
B. caught to sleep
C. catching sleeping
D. to catch to sleep
答案:
(答案→)A. caught sleeping
B. caught to sleep
C. catching sleeping
D. to catch to sleep
解析:这题考查if的省略句,词组是catch sb doing“抓住某人做”,if后面省略了you are,完整的句子是:if you are caught sleeping in class.句意是:如果你被抓住在课堂睡觉,你就打扫教室一个星期做为惩罚。选A。
句意是: