Complete the sentences with just, yet,already, for,or,since
1Don't touch the Windows! I've....cleaned them!
2 John and Sally have known each other ....five years
3 I haven't done my homework...
4 Have you...seen the new Brad Pitt film?
5 Mark had been in love with his wife...the first time he saw her

1) just

2) for

3) yet

4) already

5) since