第1个回答 2013-02-17
No error. Your've got your grammar right this time.
第2个回答 2013-02-17
You didn't make any mistake, your grammar were all right.
第3个回答 2013-02-17
不知道对不对。。错了的话一起讨论吧。。
You're not worry,your grammai all are right.
第4个回答 2013-02-17
You are right.Your grammars are all right.
第5个回答 2013-02-17
you are right ,the grammar all you used is right