Пожалуйста безотлагательно!!!! If people ate less fast

Пожалуйста срочно!!!!
If people ate less fast food, they ... healthier.
A) are;
B) were;
C) will be;
(D)) would be.
2) If I ... time, I would learn how to paint.
A) will have;
B) have;
C) had;
D) would have.
3) If you rode your bicycle to work, you ... more exercise.
A) get;
B) g o t ;
C) will get;
D) would get.
4) If I ... you, I'd study harder.
A) was;
B) w e r e ;
C) would;
D) would be.