单选题Rarely be seen, the white mountain goat is an extremely sure-footed animal that escapes from its predators by living in the most rugged, rocky landscapes.AHaving been rarely seenBRarely to be seenCRarely seenDBeing rarely seen
单选题
Rarely be seen, the white mountain goat is an extremely sure-footed animal that escapes from its predators by living in the most rugged, rocky landscapes.
A
Having been rarely seen
B
Rarely to be seen
C
Rarely seen
D
Being rarely seen
参考解析
解析：
句意：极其少见的白山羊是一种很稳健的动物，为了逃避捕猎者，它们住在起伏的山地里。小分句主语实际是the white mountain goat，与动词see的关系很明显是被动的。Done 表示动作已经完成，符合题意。Being done表示动作正在进行。To be done表示动作还未发生。
句意：极其少见的白山羊是一种很稳健的动物，为了逃避捕猎者，它们住在起伏的山地里。小分句主语实际是the white mountain goat，与动词see的关系很明显是被动的。Done 表示动作已经完成，符合题意。Being done表示动作正在进行。To be done表示动作还未发生。
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