Ответ:
1 George has already seen a 3D film before.
2 I've just got back from an
amazing holiday.
3 "Do you want to go to the cinema to see
the new James Bond film, Frank?" "I've never seen it."
4 Amy has done her homework, but she
hasn't tidied her room since.
5 I haven't seen Mary since her
birthday party.
6 This is the first time I've
been on an elephant!
7 Dan has lived overseas
seven years.
Liiiizzzaaaaaaa