第1个回答 2009-08-07
We should carefully complete the operation is very important。
第2个回答 2009-08-07
it is very important for us to finish our homework seriously.
第3个回答 2009-08-07
It is very important for us to finish homework carefully!
第4个回答 2009-08-07
We should carefully finish the homework is very important.
一楼的答案是机器翻译的.老师会觉得不是本人做的