The root word bi means two.
One example of this root word being used is the word bicycle.
The root word is used so as to tell people that this bicycle has two wheels.
A unicycle is a riding device that has one wheel.
Answer:
It seems like some natural disaster like earthquake. Which destroyed that person's home. ;-;
Answer:
We need the sentences, but I can give you a few examples: The dog was walked by Jim, instead of Jim walked the dog.
