The Great Wall istourist attraction that millions of people pour in every year.
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The purpose of the campaign is to raise the public’s_______ of the dangers of passive smoking.
A recent study has come up with _____ unexpected conclusion that ____ Africa elephants should be divided into two different species.
If I long enough to have a job, I would choose to be a doctor, those AIDS patients.
Once a difficult and even dangerous place , Vietnam is now a friendly detestation that welcomes visitors from all over the world .
There are no easy answers to questions brought to us by the rapidly changing world, we can try to turn challenges into opportunities.