Complete with: on, at (x2), to, in.
Berik isn't keen ............ team sports, so he prefers to do athletics.
2 Exercising at a gym can be boring, but it's worth it ............ the end.
3 Halima is hopeless ............ ball sports, but she's a very good gymnast.
4 You'll be amazed ........... the low membership fees at this gym!
5 Drinking energy drinks can actually be harmful ............ your health.​