No, Matt Smith.
No.
No, David Tennant has left, his last episode was on New Years Day, Matt Smith is The Doctor now.
probably not, but she was seen filming the doctro who Christmas special for this year (2009) when david tennant regnenrates
According to many articles, David Tennant said he wanted to be an actor already when he was 3 years old.
The Eleventh Hour
yes.he was in it in series 5 with david tennant
I know, but it is for the film crew and staff only, sorry!
David Tennant isn't doing series five, Matt Smith is taking over as the eleventh Doctor at the end of the year, his companion is Amy Pond played by Karen Gillan and Steven Moffat is taking over from Russell T Davies, so it will most likely be totally new characters of his creation from now on. If you mean clone Doctor and Rose then I doubt they will have 10.5 in the new series because it would over shadow Matt. Billie Piper does have a small role/cameo in one of David's final episodes though, but it will be Rose before she met the Doctor so she will have no idea who he is.
The end of the Christmas special part 2 said spring 2010
It has already started and finished I live in Australia and am already waiting for season 6
In chapter 5 for The Grapes Of Wrath, the owners of the land suggest the tenant farmers to move to California.
Yes, he has signed up for series 5 which will be shown in 2010. There won't be any series in 2009 as he is taking time out to tour with the Royal Shakespear Company. There are rumours that he will regenerate into a new doctor near the end of series 5 though, which I hope isn't true :)