It depends on the Class You Send It By and when the person replys
I would say 3 to 7 minutes. If they don't text back after 10 minutes then they probably don't have their phone with them.
If you cannot reply back to someone on Facebook, check to see if you have them blocked. You may also need to change your settings to include them in who can see your posts.
You say back off kangaroo your fat ugly and you smell like poo that's been rotting in a hobo's mouth:)
If you promise to do something you actually do it.
Yes so people can reply to the letter. Only if you wish the recipient to know who sent the letter before they open it, or if you suspect the letter may be undelivered and you want it back.
No. Revert means to return something to a previous state. Reply or respond would be appropriate instead of 'get back'.
Say something really sweet to her on twitter @misskellyo and she will reply back to you (:
reply means to answer back.
Well, I'd imagine something had come up in real life that he couldn't reply to you while doing whatever he had to do. Just ask him if you're so interested in what he had to do, but be careful, don't be TOO nosy.
look at it see what he says reply back something dirty that has to do about what you guys are talking about
the reply button is used to answer the person back
Please reply to our invitation by September, 1, 2012. He raised his hand to reply to the teacher's question.
He will never reply
In the back of a Volkswagon.
reply impudently
Either busy, mad, or lost item to reply with.
Every other Wednesday they come out with new stock. But every 4-6 weeks they bring back the old stock from months ago.