Costs have been reduced 20% over past year. A. inB. onC. toD. by

发布时间：2020-08-15 02:10:54

Costs have been reduced     20% over past year.
A. in
B. on
C. to
D. by

网友回答

A. in
B. on
C. to
(答案→)D. by
解析：考查介词与reduce的搭配。by为减少了多少；to减少到多少；按照句意：过去的一年，各项费用已经减少了20%可知答案。
以上问题属网友观点，不代表本站立场，仅供参考！