Question

-----Have you seen___ pen? I left it here this morning.
-----Is it __black one? I found it in the corner.

A．a, the

B．the, the?

C．a, a

D．the, a

Answer 1

A

此题的最佳答案就是A，前空泛指，后空特指“谈话者都知道的东西”。