-----Haveyouseen＿＿＿＿pen﹖Ileftitherethismorning. -----I...
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问题详情：
-----Have you seen＿＿＿＿pen﹖I left it here this morning.
-----Is it＿＿＿＿black one﹖I think I saw it somewhere.
A. a；the B. the；the C. the；a D. a；a
【回答】
D
知识点：冠词
题型：选择题
