题目

It was unbelievable that the fans waited outside the gym for threehours just (have) a look at the sports stars. 答案：【1】to have随意抛一粒豆子，恰好落在如图的方格中（每个方格除颜色外完全一样），那么这粒豆子落在黑色方格中的概率是    ．