【题目】—What do you think of the Great Wall of China?
—Splendid! When I was in Beijing, I ________ it twice.
A. had visitedB. visited
C. have visitedD. would visit
在线课程【答案】B
【解析】
考查时态。句意：——你认为中国的长城怎么样？——好极了！在北京的时候我参观过两次。根据“When I was in Beijing”可知，此处用一般过去时，故B项正确。