Problem: How does the next paragraph end?

A group of surfers are riding the waves in the ocean. a large wave
A: knocks some of them over.

Problem: How does the next paragraph end?

How to get rid of cystic acne scars
Research and take precautions with home remedies.
There are a lot of home remedies that can reduce the look of your cystic acne scars. But, just because something claims to be natural doesn't mean it's safe.
A: Read up on the ingredients involved in remedies and avoid ingredients that you're sensitive or allergic to. If you're thinking about buying an over-the-counter home treatment for scar removal, research the product first.

Problem: How does the next paragraph end?

How to fall asleep if you are blind or visually impaired
Talk to your doctor.
If you are a blind or visually impaired person who is having trouble falling asleep, you should set up an appointment with your doctor. Ask your doctor to examine you for non-24, a sleep disorder that frequently affects visually impaired and blind people.
A: Non-24 is a disorder that affects your sleep-wake cycles and is common in blind people. People with non-24 have trouble falling and staying asleep at night, as well as extreme urges to nap during the day.

Problem: How does the next paragraph end?

How to roast fall vegetables
Preheat the oven and select your baking sheets.
Turn on the oven to 425 degrees f (218 c). Set two heavy baking sheets near your work space.
A:
Although you don't need to butter or grease the sheets, you may want to lay down foil for easier clean up. Since many fall vegetables take a while to roast, use heavy baking sheets so the heat is distributed evenly.