8.______ that he had completed designing a new device of las

8.______ that he had completed designing a new device of laser,we came to congratulate him on his success.
A.To have heard B.Having heard
C.Being heard D.Having been heard 心坟00 1年前他留下的回答 已收到1个回答

春神曲 网友

该名网友总共回答了19个问题，此问答他的回答如下：采纳率：94.7%

B.分句的逻辑主语应与主句一致

1年前他留下的回答

8

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