Choose the correct form of the verb in the parenthesis.

1. Thirty pesos (is, are) too much to pay for a pad paper.
2. There (is, are) many ways to become successful.
3. Poor (is, are not to be humiliated.
4. Either the teachers or the student (love, loves) to sing love songs.
5. The number of students (has, have) increased two percent.
6. The store (stay, stays) open till six o'clock.
7. Kathrina and Kathlina (complain, complains) all the time.