EXERCISE 25, Using OF in expressions of quantity. (Chart 7-11)
Directions: Add of if necessary. Write if of is not necessary
LI know several of Jack's friends.
2. I've made several friends lately
3. Some students are lazy. Most students are hard-working
4. Some the students in Mrs. Gray's class are a little lazy.

5. Most
books have an index.
6. Most Ali's books are written in Arabic.
7. I bought a few books yesterday.
8. I've read a few those books.
9. I'm new here. I don't know many people yet.