问题
选择题
It is the second time that I____ in Beijing
A．am
B．was
C．have been
D．had been
答案
答案：C
题目分析：考查固定句型。这是我第二次去北京了。It is the second time that have/has done.某人第几次做某事了。It was the second tome that had done .某人第几次做某事了。注意两个句型的不同，如果是is,用现在完成时。如果是was 要用过去完成时。一定要分清楚。
考点 考查固定句型