Complete the marathon runner's blog post by dragging the correct verb forms into the blanks.

Around mile 15, I was so exhausted that I had to stop to drink some water. After finishing the race, I promised myself I would stop eating junk food to maintain my fitness.

Around mile 15, I was so exhausted that I had to stop to drink some water.

We use "stop + to infinitive" when someone pauses or interrupts their current activity in order to do something else (infinitive of purpose). Here, the runner stopped running in order to drink.

After finishing the race, I promised myself I would stop eating junk food to maintain my fitness.

We use "stop + -ing (gerund)" when someone quits a habit or ceases an action completely. Here, the runner wants to quit the habit of eating junk food.