第1个回答 2013-09-23
i'm very happy help you
第2个回答 2013-09-23
I will be happy to serve you
第3个回答 2013-09-23
It is my pleasure to do you a favor/help you
第4个回答 2013-09-23
I'd be glad to help you
第5个回答 2013-09-23
I am really glad to serve you
It's my pleasure to serve you