What great trouble we had where his house was.A. in findingB. to findC. findD. found.

问题补充：

What great trouble we had where his house was.

A. in finding

B. to find

C. find

D. found.

答案：

(答案→)A. in finding

B. to find

C. find

D. found.

解析：考查句子结构。固定结构:have some trouble (in) doing sth做某事有困难；本题只是把trouble提前，后面使用定语从句，关系代词指代trouble作为had的宾语，故A正确。