Choose the right option observing the rules of English agreement: 1. Neither the stars nor the moon is/are visible. 2. The director and producer has/have signed the contract. 3. He is one of those who knows/know how to choose the best wine. 4. 35% per cent of my colleagues is/are under 35. 5. Your tactics is/are obvious, Peter! 6. More than one person is/are unhappy with your decision. 7. The party was/were asked to move towards the garden. 8. Every man, woman, and child in the city was/were there. 9. He wore a pair of earphones which was/were plugged into a tape-recorder. 10. The number of boys in his class is/are very small.