Решите правильно,в не смыслю,а 2 получить не хочу

2 The teacher will be angry if you come late for school again.

3 If I finish my homework early, I'll go out with my friends.

4 If the weather is bad on Saturday, we will stay at home.

5 You should see a doctor if you don't feel well.

6 If you study hard, you will pass your exam.