1)During my summer holidays I can play basketball, football, tennis, badminton, volleyball. It's also exiting to try archery - it'll be fantastic! I can try horce racing, cycling, mountain climbing, swimming, and I wanna add, that it will be really cool to try scuba diving!
2) Personally I during my holidays swam, played volleyball a lot and even tried horce racing! It was great!
3) Of cource I've watched Olympic games - 2012 in London! I watched archery, and I've supported Viktor Ruban. But, actually, China won.
4 по сути такое же как и 3)
Ну а пятое по аналогии придумай)