— Did a letter come for me this morning? — Yescame for you. A. ThatB. It C. OneD. The

问题补充：

— Did a letter come for me this morning?

— Yes. came for you.

A. That

B. It

C. One

D. The letter

答案：

A. That

B. It

(答案→)C. One

D. The letter

解析：考查代词：句意：今天早上有我的信吗？是，有你一封信。用one泛指a letter，that特指上文的可数名词单数，或不可数名词，it特指上文的同类同物。选C。