问题补充:
More highways have been built in China,it much easier for people to trave form one place to another.
A. making
B. made
C. to make
D. having made
答案:
(答案→)A. making
B. made
C. to make
D. having made
解析: 考查非谓语动词作结果状语。To do作结果状语,表出人意料的结果;doing作结果状语,表自然而然,意料之中的结果。句中更多高速被建设,从而使人们出行更方便,是自然而然的结果,所以选A。