问题补充:
The World Expo in Shanghai successfully. It was an honor of all
of the Asians.
A. is held
B. was held
C. has been held
D. would be held
答案:
A. is held
(答案→)B. was held
C. has been held
D. would be held
解析:根据successfully成功的以及下文,可知上文叙述的事情已经发生,所以应为过去时态。这里强调的是世界博览会举行过了,所以选B.