注册会计师为了确定应付债券账户期末余额的真实性，应向（）对象函证应付债券相关内容。

A.债权人

B.债券的承销人

C.证券公司

D.债券包销人

—— Have you considered _____ your job as a teacher?

——Yes. I like the job because a teacher is often considered _____ a gardener.

A．to change; to be

B．to change; being

C．changing; being

D．changing; to be