Where ........ (you/be)? I ................ (not/see) you for ages.
Where have you been? I haven't seen you for ages.
Chris.......... (not/make) any plans for his birthday yet.
Chris hasn't made any plans for his birthday yet.
Sally .......... (live) in London when she was young, but she ........ (live) in Paris since she was sixteen.
Sally lived in London when she was young, but she has lived in Paris since she was sixteen.