I bought a new type of cell-phone, which was the ____ of all my classmates.

This dictionary is _____ to my reading, but that one is __________.

At the meeting they discussed three different __________ to the study of mathematics.

 My school isn't far from here. It's only ________ walk. 

My brother has been preparing carefully for the English exam, so that he can be sure of passing it at his first _______