1.Have you ever met the Prime Minister?Yes.Once.
2.Harry has that pjone for five years!
3.We haven't been to the shops yet.
4.Don't touch the door!I've just painted it.
5.Do you like skling?I don't know.I've already done it.
6.My mum has loved singing since she was a little girl.
7.John has known Alex for a very long time.
8."Let's watch this DVD.I'm sorry but I've already seen it.
9.Tam still hasn't finished his homework,it's ten o'clock.
10.Have they finished football yet?
11.Do you know Sam?No.I've never met him.