问题
off the TV,Jack._______ your homeworknow—Mum,just ten more minutes,please.
A:Should you be doing
B:Shouldn’t you be doing
C:Couldn’t you be doing
D:Will you be doing
B:Shouldn’t you be doing
C:Couldn’t you be doing
D:Will you be doing
正确答案是：
同类题型
Those were the graduate assistants ______ to do the research work in the lab.
and gentlemen, please fasten your seat belts The plane _____
may have different opinions aboutKaren, but I admire her, _______, she is a great musician.
Jim a skilled worker for almost six yearsHe is an experienced manager now