1 They are in charge of keeping the area clean.
2 Look! The children are throwing snowballs at each other!
3 She's crazy about football.
4 She's well-behaved and never gets into trouble at school.
5 He wakes up early to get ready for school.
6 People of all ages can join the sports club.
Объяснение:
1)in
2)at
3)about
4)into
5)to
6)of