Đáp án chi tiết:

1. That film is more interesting than that one. → That one is less interesting than this film. (Phim kia kém thú vị hơn phim này.)

2. My kitchen is smaller than yours. → Your kitchen is bigger than mine. (Bếp nhà bạn rộng hơn bếp nhà tôi.)

3. My mother cannot cook as well as me. → I can cook better than my mother. (Tôi nấu ăn ngon hơn mẹ tôi.)

4. She has a house which is not as modern as my house. → My house is more modern than hers. (Nhà tôi hiện đại hơn nhà cô ấy.)

5. The movie was boring. I had been thought it was interesting. → The movie was more boring than I had thought. (Bộ phim nhàm chán hơn tôi nghĩ.)

6. He cannot play tennis as well as Jack. → Jack can play tennis better than he. (Jack chơi tennis giỏi hơn anh ấy.)

7. I did not spend as much money as you. → You spent more money than I did. (Bạn đã tiêu nhiều tiền hơn tôi.)

8. I didn't think this book is expensive as it is. → This book is more expensive than I thought. (Cuốn sách này đắt hơn tôi nghĩ.)

9. A city has more interesting activities than the countryside. → The countryside has fewer interesting activities than a city. (Nông thôn có ít hoạt động thú vị hơn thành phố.)