Look forward to your reply.
要客气的话，可说：Look forward to your favourable reply， 或是look forward to your kind reply/advice.
如果事情有点急，可委婉的说：Look forward to your soonest reply.
1、Therefore, our cooperation is very necessary and look forward to your reply .
2、At the same time, we will look forward to your reply, refitting our software constantly, hoping that it would be the most useful slimming software.
3、I will be deeply appreciated that you have done for me and look forward to your reply.
4、We look forward to your reply as soon as possible.
5、I really appreciate your help, and I look forward to your reply as soon as possible.
6、We sincerely look forward to your reply, I wish your organization the Samson and prosperity!
7、I sincerely hope that you will take my advice into consideration , and I look forward to your reply at your earliest convenience.
8、If you are interested in the Division I or have any suggestions, please contact us and look forward to your reply in order to increase our opportunities for cooperation!