Дополни предложения подходящими местоимениями: 1 this trip could be dangerius, tace care of 2 when my brother was 3 years old he couldnt do anything by 3 yesterday i hurt when i was riding a bike, 4 we arranged for frankies birthday party by .

1 This trip could be dangerous, take care of you !
2 When my brother was 3 years old he couldn’t do anything by himself
3 Yesterday I hurt  myself when I was riding a bike,
4 We arranged for Frankie’s birthday party by ourselves.