第1个回答 2014-10-13
We are looking forward to your reply/answer.
We are looking forward to receiving your reply/answer.
这两种都可以，但个人感觉第一种就可以了，也比第二种要地道些。
回答完毕，望采纳，谢谢。本回答被网友采纳
第2个回答 2014-10-13
We are looking forward to your earliest reply.
Please reply us at your earliest convenience.
仅供参考，欢迎指正
第3个回答 2014-10-13
We are looking forward to hear you soon.
第4个回答 2014-10-13
l am looking for your reply！