They promised your minds or you will get your money back.A. change; successfulB. to chan

问题补充：

They promised your minds , or you will get your money back.

A. change; successful

B. to change; successful

C. change; successfully

D. to change; successfully

答案：

A. change; successful

B. to change; successful

C. change; successfully

(答案→)D. to change; successfully

解析：promise后接动词不定式，而修饰动词的词应该为副词，故选答案为D