1 задание, пожалуйста

1/ If you swim in the pool three times a week, you will not get flu.
2/ He will be the best student, if he works hard.
3/ They will make a snowman, if it snows.
4/ I will not ride a bike, if the weather is rainy.
5/ You will get better, if you call a doctor.
6/ If she doesn't come to the party, he will sad.