—Your colleague is speaking English with fluency.
—It's no wonder．She in the UK for a year as a visiting professor
A. worked
B. has worked
C. had worked
D. has been working
网友回答
(答案→)A. worked
B. has worked
C. had worked
D. has been working
解析：考查时态：句意：--你的同事英语说的很流利，--不奇怪，她在英国做访问教授一年的时间。因为现在和说话人是同事，所以在英国的一年做访问教授是过去的事情，用一般过去时，选A。