问题补充:
Mum, may I watch TV for a while ? –of course, if your work .
A. is finished
B. finishes
C. have been finished
D. will be finished
答案:
(答案→)A. is finished
B. finishes
C. have been finished
D. will be finished
解析:句意:妈妈,我能看会电视吗?当然可以,如果你的作业完成了。句中主语work与动词finish是被动关系,要用被动语态;而且work 是不可数 名词,谓语动词只能用单数形式,故选A。