根据句意及首字母提示，补全下面的信。

Dear Sally，

     How are you? I'm very happy because I have a good p__1__friend. He is a Chinese boy and his name is Li Ming. He is thirteen y  2   old. He can s   3      

good English. He has a sister and a brother. He likes sports but he doesn't like football. He often sends me some p    4    of his family. He is h  5  dinner with his family in the first picture. He is p_6        basketball with his brother in the

park in the second picture. In the last picture, Li Ming and his brother arel  7   on the beach. Their mother and sister are sailing a boat.Their father is fishing. Li Ming is a g  8   boy and he has a happy f     9      .Do you have any Chinese

friends?

     Please w  10  to me.

                                                                                                             Yours，

                                                                                                             Amy

在Flash动画中，遮罩动画所显示的是（）的内容、（）的形状。

A.遮罩图层下所有图层、遮罩图层

B.遮罩图层、遮罩图层下所有图层

C.被遮罩图层、遮罩图层

D.遮罩图层、被遮罩图层