Question

【题目】The population of this city，forty percent of which________，________20% in the last three years.

A．are Germans；has risen by

B．are Germans；has fallen to

C．is Germans；have increased to

D．is Germans；have been reduced by

Answer 1

【答案】A

【解析】population作主语时，谓语应用单数，但是有分数或百分数说明population时，谓语则用复数，所以第一个空应用复数，第二个空应用单数。表示增加或减少的幅度用介词by。