Exercise 7: Underline the mistake in each sentence.
1. Richard feels good than several days ago.
2. Mary and Daisy are both intelligent students. Mary is so intelligent as Daisy.
3. I found the conversation as most interesting and I was glad to practice my English.
4. The Caspian Sea, a salt lake, is largest than any other lakes in the world.
5. He drives the car more dangerous than his brother does.
6. It was the most biggest building that I had ever seen.
7. I wish my house were so large as John's.
8. The Mekong is one of the longer rivers in the world.
9. She can play the piano more good than her sister.
10. Many people believe that New York is the most great city in America.
Exercise 8: Underline the mistako