The ine of the mon people has been greatly increased in the past thirty years the reform and opening-up policy in China.
A. regular; because
B. usual; thanks to
C. normal; on an account of
D. annual; owing to
网友回答
A. regular; because
B. usual; thanks to
C. normal; on an account of
(答案→)D. annual; owing to
解析：考查形容词和词组：句意：因为中国的改革开放政策，在过去的30年里面普通人的年收入已经大大增加了。第一空填annual“每年的”， regular定期的，usual平常的，normal正常的，第二空除了C项应该是on account of，其他的： because thanks to owing to 都是因为，选D。