I. Choose the best answer by underline the word
61. A large percentage of the older population is/are voting against her.
62. Two-fifths of the troops were /was lost in the battle.
63. Two-fifths of the vineyard were /was destroyed by fire.
64. Forty percent of the students is/are in favor of changing the policy.
65. Forty percent of the student body is/are in favor of changing the policy.
66. Two and two is/are four.
67. Four times four divided by two is/are eight.
68. The department members but not the chair has / have decided not to teach on Valentine's Day.
69. It is not the faculty members but the president who decide / decides this issue.
70. It were /was the speaker, not his ideas, that has/ have provoked the students to riot.