The books mainly deal with the trouble teens might have _________ right from wrong.

So ______ had he been in watching the car passing by that he didn’t notice his friends..

That’s the new machine ______ parts are toosmall to be seen.

One of the most famous monuments,the Statue of Liberty,________ to the USA in the 19th centuryby the people of France. [ ]

The days are approaching________the World Expo 2010 will be held in Shanghai