根据句意及所给首字母，完成单词。

1. Are you learning to d _____ pictures?

2. There is a big tree in f _____ of Tom's house.

3. Most of the students in our class think math is d _____.

4. My room is on the s _____ floor.

5. The bus will take you there. You can't m _____ it.

税务登记的主要内容，主要通过纳税人填写( )来体现。

A．财务报表
B．纳税申报表
C．税务登记表
D．完税凭证