Choose the correct verb to give each sentence subject-verb agreement:
1. One of the cars (is / are) out of gas.
2. All the letters in that box (need / needs) to be thrown away.
3. The players and their team captain (is / are) nervous about the game.
4. Either my mom or my dad (pick / picks) me up every day.
5. My family (has / have) a lot of problems.
6. There (is / are) about a thousand things I need to do today.