题目

The weather report has warned people _____ outdoor exercise in hazy caught．A.not do B.to not do C.not to do D.not doing 答案：【答案】C【解析】句意：天气预报警告人们不要在雾蒙蒙的天气下做户外运动。考查动粗固定用法，根据The weather report has warned people _____ outdoor exercise in hazy caught，可知句子考查warn sb not to do sth表示警告某人不要做某事，故选C。8．水果店上午卖出红枣3袋，下午又卖出5袋，每袋重50千克，这一天上午比下午少卖出多少千克？（　　）A．50×3-5B．50×5-3C．50×（5-3）