4.-Henry doesn’t seem to be what he was. -No. so much in the war has made him more thoughtful. A.Seen B.His seeing C.Having seen D.To have seen 查看更多

 

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— Henry doesn't seem to be what he was, does he?
— No. ________ so much in the war has made him more thoughtful.
 [     ]
A. Seen  
B. His seeing
C. Having seen 
D. To have seen

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