I would appreciate     very much if you could send me a few copies of the mechanic design of your new model. 

Rather than ____ on a crowded bus, he always prefers ______ a bicycle.

In the past few years, so many areas throughout the world have been hit by such destructive earthquakes, snowstorms and tsunamis ________ we have never experienced before, ________ makes us worried a lot about nature disasters.

As a young man, there was __________ time __________ I hated to go to school .

___ is no good ___ without doing anything.