“Excuse me, could you tell me where the department store is” sounds ______ than “Where is the department store”

_____is more interesting than _____.

She has been teaching in a school since she graduated, so she is not __________ to associating with business people. [ ]

not until I came here ____ Irealized this place was famous, for not only its beauty but also its weather.

______ can help us learn ______ about the world.