Find the mistake???

[AHM2015ED]

1-the manager thanked every one for all their hard work
2-He won a medal for swimming
3-football comes people together when their teams do it
4-I work much better if i take a little break every hour
5-Loisel and his wife are not as rich as they would like be
6-we used to meet twice a week last holiday
7-they Are used to spend their weekends in alex.they don't any more

انا مش متاكد من رقم 7 بس