－Why not go to see the dolphin show with me?－Because I it.A. sawB. will seeC. seeD. have

问题补充：

－Why not go to see the dolphin show with me?

－Because I it.

A. saw

B. will see

C. see

D. have seen

答案：

A. saw

B. will see

C. see

(答案→)D. have seen

解析：考查时态：句意：--你为什么不和我去看海豚表演？--因为我已经看过了。根据题意可知“我”为什么不去看海豚就是因为我已看过，动作已经完成，用现在完成时，故选D.