第1个回答 2013-09-12
Whether you will attend (it), please kindly reply and let me know.
第2个回答 2013-09-12
Please reply whether you are able to attend.
第3个回答 2013-09-12
I will be glad to see your reply whether you will come or not.
第4个回答 2013-09-12
Regardless of whether you can attend, please write to me and tell me
第5个回答 2013-09-12
Please write to tell me no matter if you can be present or not.