homework的用法：
1.I haven't done my homework.
我還沒有做作業。
2.Have you done your homework?
你的作業做了嗎?
3.I have to do a lot of homework for tomorrow's meeting.
明天要開會，我還要做許多準備工作。
4.It was late at night and he was still working away at his homework.
夜深了，他還在做課外作業。
5.When teachers assign homework,students usually feel an obligation to do it.
當老師布置家庭作業的時候，學生們通常覺得做作業是分內之事。
6.Our teachers assign too much homework.
我們老師布置的家庭作業太多了。
7.Sorry,I have so much homework to do,I can not go to Happy Valley with you.
對不起，我有很多作業要做，不能和你去歡樂谷。