第21题: [单项选择]The speaker was very good at ______ his ideas during the discussion. A. putting aside B. putting across C. putting back D. putting off 参考答案:B 答案解析:[解析] 这位发言人在讨论中很善于把他的想法解释清楚。 [解析] 考查动词短语辨析。put aside意为“储存,保留;把……放一边,暂不考虑”;put across意为“表达/解释清楚(自己的