At the age of 29, Dave was a worker, ________ in a small apartment near Boston and ________ what to do about his future. 

________ with the size of the whole earth, the biggest ocean does not seem big at all.

_____ he’s only been learning English for a year, he speaks it very well.

_____ the front door _____, he had to enter the room through the back door.

There are trees and flowers along both sides of the road______ our school.