Thirty dollars ________ too expensive.
It was _____ great shock to the world that two planes crashed into _____ World Trade Center in New York on September 11th, 2001.
The WTO cannot live up to its name _____ it does not include a country that is home to one fifth of mankind.
------- How are you today ? ------- Oh, I ______ as ill as I do now for a very long time .
I’ve worked with children before, so I know what ______ in my new job.
--------Why don’t we take a little break ? -------- Didn’t we just have ______ ?