Complete the sentences with FOR or SINCE. 1 I've been playing the piano ...... five years. 2 He's been working on that project .............two months now, and he still hasn't finished! 3 You've been working on the computer ...

Complete the sentences with FOR or SINCE. 1 I've been playing the piano ...... five years. 2 He's been working on that project .............two months now, and he still hasn't finished! 3 You've been working on the computer …………..six this morning. Have a break ! 4 We've been going to Latin American dance classes ………..2004, and we're quite good at the tango now. S I've been reading this book ……… three weeks now. 6 We've been waiting here ……... hours !