英语书信结尾用语给朋友写E-mail,一般结尾的祝福语应该怎么写,都可以说什么?例如：best regards 之类的或

Have a nice day!
Have a nice weekend!
Write to you soon!
Looking forward to your reply.
Hugs,
Love,
Have a good one!
I'd better sign off now, looking forward to hear from you.