Question

11.(2014 梅州一模) B ecause of the new traffic rule,fewer accidents       last month.

   A. are caused     B. were caused

   C. have caused   D. will cause

Answer 1

11.B

11.B. 

句意：由于新的交通法规.上个月发生的事故更少了。事故是由人造成的，应用被动语态，根据last month可知谓语动词应用一般过去时。故B项正确。