— Have you seen ______ pen? I left it here this morning.
— Is it ______ black one? I think I saw it somewhere.
- A.a; an
- B.a; a
- C.the; the
- D./; an
答案
正确答案:B

一定要重点注意,根据上下文语境,这两处都是泛指,且都是辅音音素前,所以都用a。

第二个空是问它是一支黑色的笔吗?也表示泛指。
