问题补充：
This is the least wonderful TV play .
A. what I have ever seen
B. I have ever seen
C. I have ever seen it
D. that I have ever seen it
答案：
A. what I have ever seen
(答案→)B. I have ever seen
C. I have ever seen it
D. that I have ever seen it
解析：空格处填一定语从句that I have seen, 关系代词that在从句中作宾语,常省去.
