IN: Write the next sentence in this paragraph:
How to clean a metal roof
Wait for dry weather and overcast skies.
Avoid cleaning your roof in direct sunlight. Keep in mind that metal and light-colored paint will reflect sunlight and create glare, which may drastically reduce your vision.

OUT: If the layout of your roof requires you to climb onto it, do so when it's dry out to reduce the risk of slipping. Of course, once you start washing your roof, it will get wet and pose a risk.

IN: Write the next sentence in this paragraph:
A band is marching down a street playing drums. a woman in a black hat

OUT: is standing on the street watching them.

IN: Write the next sentence in this paragraph:
How to clean a hummingbird feeder
Pour out all the nectar.
As you likely stock your feeder with nectar, make sure to remove that before cleaning the feeder. You should simply pour the nectar down the drain.

OUT:
Once birds have fed in the liquid it will contain mold and other contaminants so do not save unused sugar liquid from inside of the feeders. You can make more nectar later with simple sugar and water or restock the feeder with store-bought nectar.