27．At last, the boys found themselves in a pleasant park with trees providing shade anddow
27．At last, the boys found themselves in a pleasant park with trees providing shade anddow
发布时间：2020-08-15 02:52:30
27．At last, the boys found themselves in a pleasant park with trees providing shade and down to eat their picnic lunch. A. to sit B. sat C. sitting D. having sat
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A. to sit (答案→)B. sat C. sitting D. having sat 解析：可联系客服索取此答案。