题目

下列事件是随机事件的是(    )     A．购买一张彩票，中奖     B．在一个标准大气压下，加热到100℃，水沸腾     C．奥运会上，百米赛跑的成绩为5秒     D．掷一枚普通骰子，朝上一面的点数是8 答案：A补全对话,每空一词。A:  Hello.      1     to our school.     2     are you    3     ? B:  We are from Beijing. A:     4           5    are you? B:  We are eleven.  We are students of Yuxin Middle School. A:  Can you     6      English?  B:  Yes,  we can. And we can speak some Japanese. A:  Can you   7     ? B:  Yes,  we can.  We can sing     8      English and Chinese. A:  Can you     9      the piano? B:  No,  we can't.  But our parents     10    . 1. _____  2. _____  3. _____  4. _____  5. _____ 6. _____  7. _____  8. _____  9. _____  10. _____