Theengineersmadetwobigplansforthedamwasneverputinforce.A、oneofthemB、whichC、oneofwhichD、everyoneofwhich

Question

The engineers made two big plans for the dam ____ was never put in force.

A、one of them       B、which          C、one of which      D、every one of which

Answer 1

C 解析:  本题主要是对句子结构及关系是考查。根据逗号可知，后面句子为非限制性定语从句，先行词是plan；再根据句子中的was及前面的two可知本题的正确答案为C。