We promise attends the party a chance to have a photo taken with the movie star.A. whoever

问题补充：

We promise attends the party a chance to have a photo taken with the movie star.

A. whoever

B. whom

C. who

D. whomever

答案：

(答案→)A. whoever

B. whom

C. who

D. whomever

解析：通过分析句子结构，可知这个句子中包含一个宾语从句，且引导词在从句中作主语，表示任何人的意思，故选A。