Viết lại câu nghĩa không thay đổi

Viết lại câu nghĩa không thay đổi 
1 . They all think swimming is intesting because. It's good for theie leath
» they fìnd
2 . He is leaving now because he doesn't want to miss the last bus (so)
» 
3 . The last time she saw her aunt was 3 years ago   ( for)
» she hasn't 
4 my mother likes to do volunteer at the weekend
» enjoys
5 it 's a good idea to go swimming
» you should