问题补充:
Lin Yi isn’t what it used to be.The last decade great changes in the city images.
A. witnessed
B. was witnessed
C. has witnessed
D. had witnessed
答案:
A. witnessed
B. was witnessed
(答案→)C. has witnessed
D. had witnessed
解析:考查时态。句意:Lin Yi不在是以前的样子了,最近十年已经见证了城市面貌的重大变化。动作时从过去一直持续到现在,所以选C。