问题补充：
It is the first time that he here and now it is high time that he around.
A. come; should be shown
B. has come; was shown
C. came; was shown
D. has come; be shown
答案：
A. come; should be shown
(答案→)B. has come; was shown
C. came; was shown
D. has come; be shown
解析：句意：这是第一次来这里，现在到了他被领着参观的时间了。这里是固定句式 It is the first time that…have done…，如果is换成was ，that后的从句的谓语动词用had done；it is high time that…did/should do,这里的should不能省略，这里是短语show sb around领某人参观；第二空因为he与show之间是被动关系，故用被动语态。故选B。
