问题补充:
I hope we only have half an hour homework, so we can have more time our hobbies.
A. of, of
B. of, for
C. for, for
D. for, of
答案:
A. of, of
(答案→)B. of, for
C. for, for
D. for, of
解析:句意:我希望我们只有半小时的作业,那样我们就有更多的时间给我们的业余爱好。of的,for给;半小时的作业,名词所有格;留出更多的时间给爱好,故选B.