It is fun to watch fireflies when it is night.A firefly gives out light in the dark.The light comes inside the bug.Sometimes eben firefly eggs will shine in the dark.When a firefly flied by,it flashes its light to other fireflies.This is how fireflies find one another.There are fireflies flashing red and freen lights.They are very pretty and their lights are very bright.Many fireflies get together could give enough light to show your way in the dark.There are many kinds of fireflies throughout the world.Fireflies are seen most in warm parts of the country.这是改后的，我也拿不太准了，你再看看吧，改错嘛，反正就是从时态、单复数、固定搭配等方面来找的。而且，如果是标准改错题，一般是9错1对的。
