Have you seen ________ pen? I left it here this morning. —Is it ________ black one? I think I saw it somewhere(www.yygrammar.com).(2.0分)
A: a; the
B: the; the
C: the; a
D: a; a
出自:梦想在线大学英语1

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
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