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5. What do you think about the air (pollute) in your hometown?

4. How many (block) are there in the city of New York?

3. Now more and more (factory) have moved away from cities.

2. John and Daniel are brothers,and their (wife) are sisters. That's interesting!

1. It snows a lot in the (north) part of the country in winter.

6. Nanjing has (to become different) a lot over the years.

5. I want to go travelling, (but) , I have no idea where to go.

4. The children (understand) they were wrong and said sorry to their mother.

3. What's on TV? —A reporter is having an (采訪) with President Obama.

2. Have you (曾經(jīng)) thought of moving to a big city? —No,never.