помогите пожалуйста не могу разобратся

1.who helps you?
2.who helped you?
3.who can help you?
4.who loves apples?
5.who takes the apples?
6.who took the apples?
7.who have some apples?
8.who lives in Samara?
9.who was in Samara?
10.who in Samara?