There are ___ paper in the workroom.A.a piece of B.a pile of C.pi_英语解答

There are ___ paper in the workroom.A.a piece of B.a pile of C.piles of D.a lot of

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解答

There are ___ paper in the workroom. A. a piece of B.a pile of C.piles of D.a lot of
选C因为There are 后必须跟可数名词复数形式,只有c符合