7.Last year the number of students who graduated with a driving license reached 200.000,a（n)____of
40,000 per year.
A.average B.number. C.amount. D.quantity.
8.The doctor is skilled at treating heart trouble and never accepts any gifts from his patients,so he has a very good ____.
A.expectation B.reputation. C.contribution. D.civilization
7.答案是A，a number of 许多；an amount of 一般加不可数名词表示数量；a quantity of 既可以加可数名
词也可以加不可数名词，根据句意，平均每年四万。
8.答案是B，reputation 名声；expectation 期望；contribution贡献；civilization 文明。
