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•There is a game for two teams. Twenty-one balls were planted in the field of play between the two tribes, who took turns removing the flags. Each team at its turn could choose to take away 1 or 2 or 3 balls.(Thus zero-passing up one’s turn-was not permitted; nor was it within the rules to remove four or more at one turn.) The team to take the last ball, whether standing alone or as a part of a group of 2 or 3 balls, won the game.
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【简答题】（本小题8分）某市今年中考物理、化学实验操作考试，采用学生抽签方式决定自己的考试内容，规定：每位考生必须在三个物理实验（用纸签A、B、C表示）和三个化学实验（用纸签D、E、F表示）中各抽取一个进行考试.小刚在看不到纸签的情况下，分别从中各随机抽取一个. （Ⅰ）采用树形图法（或列表法）表示所有可能出现的结果； （Ⅱ）小刚抽到物理实验B和化学实验F（记作事件M）的概率是多少？
【简答题】Task 1 Ella Black is talking about the delay of an order with Thomas Cook. Listen to the conversation and fill in the blanks with what you hear.
【简答题】Task 1 Ella Black is talking about the delay of an order with Thomas Cook. Listen to the conversation and fill in the blanks with what you hear.
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