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题目内容
（郑州工程技术学院-大学英语（2）.）
21.
Some of the tunnels in the cliff are natural, some were _______ out.
(A) decorated
(B) penetrated
(C) pried
(D) carved
Some of the tunnels in the cliff are natural, some were _______ out.
(A) decorated
(B) penetrated
(C) pried
(D) carved
参考答案