entity framework,jquery,linq,wcf,mvc..which one to pick?

I have 6 yrs experience in asp.net,sql.....i don't have experience on these technologies ---entity framework,jquery,linq,wcf,mvc Presently i am looking for a job that will allow me to gain experience on 1 or max 2 technologies out of these I don't want to concentrate on all 5 at a time. I am planning to work on 1 or max 2 technologies for 1/2 years and then go to other technologies . Which 1 or 2 i should pick up first to start working on......