She insisted that we the source of the river and begin our journey there.A. find B. found

问题补充：

She insisted that we the source of the river and begin our journey there.

A. find

B. found

C. would find

D. were to find

答案：

(答案→)A. find

B. found

C. would find

D. were to find

解析：考查insist用法。当insist表示坚持要求做某事的时候，后面的宾语从句使用虚拟语气should+动词原形。Should可以省略；句意：她坚持要求我们找到河流的发源地，在那里开始我们的旅行。根据句意说明A正确。