She had a ________ idea of where Harry lived, but she didn't know the exact street.

 Thanks to the Party’s opening and reform policy, people in China are _____ than they were thirty years ago .

John bought the car at $ 7,000 which is a low price and I doubt whether there has been a ________ price since then.

In my opinion, it’s the best use that could be ______ this machine.

This book ____ 12 units, _____ the unit of Music.