As ________ volunteer for the Olympics World Games, Liu Ming should try his best to help make the event _______ great success.

I threatened to report the taxi driver for illegally _______ a passenger, but he pointed at his “Not for Hire” sign and drove away.

Bill has been working on The Wall StreetJournal for eight years and never once__________late to work

There’s a feeling in me  _______we’ll never know what a UFO is—not ever.

s a very convenient place to live in,is an airport connecting all the big cities