-Have you seen_____pen？I left it here this morning.-ls it_____ black one？I think

题干

-Have you seen_____pen？I left it here this morning.
-ls it_____ black one？I think I saw it somewhere.

A．a，the	B．the，the
C．the，a	D．a，a

上一题下一题 0.4难度单项选择更新时间:2012-11-13 06:56:17

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