—What you can do is _____ more English if you want to learn English well.

—You mean _____ more English is useful to me? [ ]

A. practicing, practice

B. to practice, practicing

C. practicing, practicing

D. to practicing, practice

如果账簿按照账页格式分类，______适合现金日记账使用。

A．三栏式

B．多栏式

C．订本账

D．特种日记账