问题

Have you seen pen? I left one here this morning.— Is it_____ black one? I think I saw it somewhere.

A: the; the
B:a;a
C:the; a
D: a; the

正确答案是：

同类题型

Hawking became world-famous in _______.

This ________ girl is Linda’s cousin.

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We are worried about ____ they can be rescued