Costshave
来源:语文精选馆 2.03W
问题详情:
Costs have ________ 20% over the past years.
A.reduced by B.been reduced by
C.reducing to D.been reduced to
【回答】
B reduce为及物动词,costs应为被减少,所以要用被动语态,排除A、C两项。另外“减少了”或“增加了”后面的百分数前要用介词by,to用在“减少到”或“增加到”后面的具体数字前。故B项正确。
知识点:动词
题型:选择题