题目内容
________the letter,she went out to post it.
[ ]
A.Writing
B.Being written
C.Having written
D.Written
答案:C
解析:
解析:
|
现在分词短语作状语时,如果其动作发生在句子谓语动词之前,用现在分词的完成式,即having done。 |
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