1. If Mary does her homework well, her teacher will praise her. 2. If I have a headache, my mother will give me some medicine. 3. If I cough, I will drink hot milk with honey. 4. If you fly by a budget airline, you will have to pay for your drinks and food. 5. If we are late for school, our teacher will be angry. 6. If you cook the supper, I will wash the dishes.