问题 选择题

The twins,______at birth,do not know each other .

A.separated

B.being separated

C.having separated

D.having been separated

答案

答案:A

分词的完成时(一般作状语)在句中一般不可作定语。如果要作定语,只能用定语从句who have been separated 。所以不选D.

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