【题目】—What are they? ( )
—_________
A.It’s an e-mail. B.They are e-books. C.They e-books.
【答案】B
【解析】
略
【题目】—What are they? ( )
—_________
A.It’s an e-mail. B.They are e-books. C.They e-books.
【答案】B
【解析】
略
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