Fill in the blanks with the correct plural forms of the Nouns in the brackets.

1. Pets are popular in the U.S. (pet) 2. Fish are interesting to watch. (fish) 3. Some people like to live alone. (person) 4. The tourists visit many countries. (country) 5. Most families in the U.S. own a house. (family) 6. Some children live with only one parent. (child) 7. The U.S. has over 300 million people. (person) 8. Cats are more common than dogs. (dog, cat)