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
网友回答
(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。