She was grateful George all he had done.A. to; for; thatB. to; for; whatC. for; to; that

问题补充：

She was grateful George all he had done.

A. to; for; that

B. to; for; what

C. for; to; that

D. for; to; what

答案：

(答案→)A. to; for; that

B. to; for; what

C. for; to; that

D. for; to; what

解析： 考察固定句式和定语从句。固定句式be grateful to sb for sth因为某事对某人心怀感激。第二空是一个定语从句，先行词是all，that指代先行词作为动词done的宾语。定语从句中没有what这个关系词。句义：对于George做的所有事情，她非常感激。故A正确。