第1个回答 2008-09-05
I have to do homework now.
第2个回答 2008-09-05
I should do my homework.
I have to do my homework.
第3个回答 2008-09-05
I should do my homework right now.
第4个回答 2008-09-05
It's high time that i should do my homework.
第5个回答 2008-09-05
it‘s time to do my homework