作业精灵示例：
Miss Li：I have eighteen grapes. What do you have, Liu Tao？
Liu Tao：I have some apples.
Miss Li：How many apples do you have？
Liu Tao：I have six apples./Six./I have six.
Miss Li：What about you Yang Ling？
Yang Ling：I have eleven bananas.
Miss Li：What do you have, Wang Bing？
Wang Bing：I have fifteen oranges.
Miss Li：Great！Let's make a fruit salad.
