—Do you have anything to say for yourselves?—Yes there is one point we must insist on.A.

问题补充：

—Do you have anything to say for yourselves?

—Yes, there is one point we must insist on.

A. why

B. where

C. how

D. /

答案：

A. why

B. where

C. how

(答案→)D. /

解析：考查从句，从句we must insist on不缺少成份，why表示原因；where表示地点；how表示怎样；所以选D，句子意思“有一点我们必须要坚持”，固定词组insist on意思“坚持”