23. All I want (is/ are) peace and quiet. 24. Two-thirds of the earth’s surface (is/ are) under water. 25. All possible means (has been/ have been) tried. 26. Every means (has been/ have been) tried. 27. Half of the money (belongs/ belong) to him. 28. Half of the books (belongs/ belong) to him. 29. A number of the members (has/ have) resigned. 30. Either of the men (is/ are) off duty. 31. A series of accidents (has/ have) occurred at that cross-roads. 32. Each of the girls (has/ have) a lot of toys. 33. Don’t you think that $60 (is/ are) too much rent for this room? 34. The majority (believes/ believe) that we are in no danger. 35. The majority of students (believes/ believe) him to be innocent.