题目内容
20、Every second day he went to the library for some books to read. But after a page or two, he would put the book down and pick up new one.
A．the, a B．不填, the C．the, a D．不填, a
试题答案
20、D
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Every _____ second day he went to the library for some books to read. But after a page or two, he would put the book down and pick up _____ new one.
A. the, a B. /, a C. the, a D. /, the
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