what is wrong with this sentence " often a colony of wild honeybees builds it's hive in a hollow tree"
The wrong word is it's. It is supposed to be its. It's means it is. :)
There's 3 main issues. 1. You should capitalize the first letter of the sentence. 2. it's means it is, so you should change it's to its for possession. 3. Add a . at the end of your sentence. Hope this helped!