A. used B. used to C. am used to D. was used to 参考答案:B 答案解析:[解析] use意为“使用”,used to do sth.意为“过去常常…”,be used to do.意为“被用来做…”。
第20题: [单项选择]The Olympic Games attempt to transcend national interests and bring together the best international athletes in a spirit of friendly competition and peace.() A. debate B. celebration C. instruction D. rivalry 参考答案:D