用适当的冠词填空
1．Some people fear that / air pollution may bring about changes in the weather around the world.
2. The doctor told him to take the medicine three times a day.
3．It’s a pleasure to see the sun rising in the east.
4．John is a European but doesn’t speak the English language at all.
5．—How do you find the birthday party of the Blairs?
—I should say it was a complete failure.
