Prepositions are little words which tell you a lot of useful information.Unfortunatelly, sometimes they can be a real disaster. Which sentences use prepositions correctly? Mr. Smith is not in the office at the moment. A school ...

Prepositions are little words which tell you a lot of useful information.Unfortunatelly, sometimes they can be a real disaster. Which sentences use prepositions correctly? Mr. Smith is not in the office at the moment. A school bus has stopped in front of my house. His office is about grocery store and parking. My house is nearby the parking. Joseph stood for a while on the door and knocked.