to settle into the new environment he made every possible effort.A. DeterminingB. To de

问题补充：

to settle into the new environment, he made every possible effort.

A. Determining

B. To determine

C. Determined

D. Determine

答案：

A. Determining

B. To determine

(答案→)C. Determined

D. Determine

解析：determined为形容词，此处形容词作状语。