Câu 644: How does the author seem to feel about the future of green cities? A. Green cities are too expensive to build in most countries. B....

Câu 644:

How does the author seem to feel about the future of green cities?

A. Green cities are too expensive to build in most countries.

B. Few people have interest in living in a green city.

C. The best green cities in the world are in North America.

D. We should continue to see more green cities being built each year.