1. There (is, are) many a student on the playground.

2. Cathy is the only one of those girls who (study, studies) hard in her class.

3. All of the work (was, were) done.

4. Not only money, but also some valuable paintings (was, were) stolen.

5. Three-fourths of the surface of the earth (is, are) the sea.

6. Either you or he (has, have) made a mistake.

7. Alice, together with her parents, (has, have) traveled 5 Asian countries.

8. Mary is one of the girls who (was, were) praised by the teacher.