They've won their last three matches I find a bit surprising actually.A. that B. when C.

问题补充：

Theyve won their last three matches, I find a bit surprising actually.

A. that

B. when

C. what

D. which

答案：

A. that

B. when

C. what

(答案→)D. which

解析：D 考察非限制性定语从句，关系代词which指代前面整个句子。句义：他们赢得了前面三场比赛，这一点我真得感觉很吃惊。