第1题: [单项选择]I have given up trying to convince him; there is no point ______ with him. A. on arguing B. in arguing C. to argue D. for arguing 参考答案:B 答案解析:[解析] there is no point in doing sth．是固定句型。表示“做某事是没道理的。”其中in可以省略。
第13题: [单项选择]— Do you always go to work on foot — Not always.______ it rains, I usually go to work by bus. 参考答案:A 答案解析:考查状语从句关联词词义辨析。when，while和as在表示时间时都有“在…时”的意思。不同的是：when强调“在一个特定的时刻，或两个动作的发生有先后”；while强调“在某个动作发生过程中，发生另
