句型转换。

1. The students are cutting up the apples. (就画线部分提问)

    ________ ________the students cutting up?

2. The woman under the tree is my English teacher.(就画线部分提问)

    ________ woman ________your English teacher?

3. You must put these things into the blender.  (改为祈使句)

     ________ these things ________  the blender.

4. It's an interesting family photo. (改为复数形式)

    ________ ________ interesting family________.

根据企业所得税法的规定，扣缴义务人每次代扣的税款，应当自代扣之日起( )日内缴入国库。

A．7
B．10
C．15
D．5