21.Last week I bought several reference books for my English study, including handbook of grammar and second-hand book on how to memorize vocabulary. A.the; the B.a; a C.a; the D.the; a 查看更多

 

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Last week I bought several reference books for my English study, including      handbook of grammar and       second-hand book on how to memorize vocabulary.

A.the; the          B.a; a           C.a; the         D.the; a

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