第1个回答 2010-07-22
I have to do my homework. (表示现在状态下的不得不做,如为了考出好成绩不得不天天做好功课)
或
I had to do my homework. (昨天我病了但我还是不得不撑起病躯做功课)
第2个回答 2010-07-22
I have to do my homework.
= I must do my homework.
第3个回答 2010-07-22
I had to do homework
第4个回答 2010-07-22
I have to do my homework
第5个回答 2010-07-22
I have to do my homework.