Detailed Instructions: In this task, you will be given a short story. One sentence from the story is chosen. Consider the events that happen before that sentence, or are likely to have happened before it. Does any of them directly cause it, or simply make it possible? You should write your answer in the form " A >causes/enables> B". Try to use phrases and sentences from the story to compose your answer when possible.
Q: story: My teeth have been hurting all of a sudden out of nowhere. I booked an emergency dentist appointment right away. The dentist asked when the last time I flossed was. I honestly couldn't remember but I know I don't floss often. The dentist told me I have gum disease and need to start flossing.
 selected sentence: I honestly couldn't remember but I know I don't floss often.
A:
The dentist asks when was the last time I flossed >Causes/Enables> I couldn't remember