Exploring Writing 2nd Edition by John Langan

Exercise 115

Write the correct form of the verb in the space provided.
1. (are, is)
Neither of those Web sites credible.
2. (know, knows)
Somebody in the classroom who stole my wallet.
3. (are, is)
Both of the professors you mentioned hard, but you will learn a lot in their classes.
4. (need, needs)
One of these DVDs to be returned to the video rental store by midnight tonight.