D. 1. as
2. less
3. not
4. than
5. better
6. much
E. 1. Athens is not as big as New York.
2. He is more famous than lots of other writers.
3. That artist paints as good pictures as me.
4. The country is not as noisy as the city.
5. In Greece, the summer is usually hot.
6. The Hudson is not as long as the Nile.
F. 1. We didn’t think Frankfurt was as interesting as Moscow.
2. I think Dickens wasn’t more famous than Shakespeare.
3. The second café was more expensive than the first café.
4. Geography is so bad than History.
5. I’m worse at tennis than at chess.
6. It’s less fun to travel alone than with friends.