雷霆崖勇士怎么样:高手请进!

来源:百度文库 编辑:高考问答 时间:2024/05/07 05:53:46
___D___a satisfactory answer, so he had to write to them again.
A.As he hadn't received B.Not having received
C.Having not received D.He hadn't received
Why?
我的答案是正确答案!

C,分词短语作原因状语.