甲、乙、丙三位同学进行足球传球训练，球从一个人脚下随机传到另一个人脚下，且每位传球人传给其余两人的机会是均等的，由甲开始传球，共传三次．

（1）Could you give me some____ ? I want to make a call. (零钱)

（2）This pair of shoes is too expensive. Would you please show me____ pair? (另一)

（3）Bring your____ and show them to your classmates.(录像带)

（4）Are more and more people ____ in shopping online? (感兴趣的)

（5）I met an old friend of my____ in the street yesterday.(祖父母)

（6）The shopping list ____  some food and drinks. (include)

（7）____ the Chinese New Year is very exciting. (celebrate)

（8）He____  made this beautiful ring for his wife. (special)

（9）My family will hold a party for my father's ____ birthday. (forty)

（10）The Smiths are____ to go to Hainan on holiday this winter. (plan)

在一个袋子中装入大小、形状完全相同的若干个小球，要使得摸到红球的概率是20%，请你设计一个实验方案：____