II. Choose the best answer by underline the word. 1. If either of you takes/take a vacation now, we will not be able to finish the work. 2. No problem is/ are harder than this one. 3. Nobody works/work harder than John does. 4. Mary or her manager is/ are going to answer the press interview. 5. Mary and her manager is/ are going to a party tonight. 6. Mary, along with her manager and some friends, is/ are going to a party tonight. 7. Mr. Robbins, accompanied by her wife and children, is/ are arriving tonight. 8. The study of languages is/ are very interesting. 9. Several theories on this subject have/ has been proposed. 10. The view of these disciplines varies/ vary from time to time. 11. The danger of forest fires is/ are not to be taken lightly. 12. The boys in the room is/ are playing chess. 13. Knowing her has/ have made him what he is. 14. Not studying has/ have caused him many problems. 15. Washing with special cream is/ are recommended for scalp infection. 16. Being cordial is/ are one of his greatest assets. 17. Writing many letters makes/ make her happy. 18. Dieting is/ are very popular today, especially for man 19. Diet is/ are for those who suffer from a certain disease. 20. To find the book is/ are necessary for him. 21. The committee has/have met, and it has rejected the proposal. 22. The family was/ were elated by the news. 23. The crowd was/ were wild with excitement. 24. Congress has/ have initiated a new plan to combat inflation. 25. The majority believes that we is/ are in no danger.