A. responsibilities B. intentions C. probabilities D. opportunities 参考答案:A 答案解析:[考点] 名词辨析 A) responsibility“责任，负担”；B) intention“意图，目的，意思”；C)probability“可能，可能性”；D) opportunity“机会，良
第20题: [单项选择]Those were the graduate students ______ to do the research work in the lab. A. to whom it was their responsibility B. of whom the function was C. whose responsibility was D. of whom with the responsibility 参考答案:C 答案解析:本题译文：那些是研究生，他们的任务是在实验室里做研究。此题考查定语从句。whose既是连词可以引导定语从句修饰限定先行词the graduate students，又是形容词修饰限定responsib
