14.His book was much better than similar books （ ）before him.A.being written B.having written

14.His book was much better than similar books （ ）before him.A.being written B.having written
14.His book was much better than similar books （ ）before him.A.being written B.having written

14.His book was much better than similar books （ ）before him.A.being written B.having written
选择A,因为books和write之间时被动的关系,所以选择A

应该是 C. written 我已经做过了

B 现在完成进行

A books与 write是被动关系 ,B应改为having been written表被动

选B ， 绝对不可能是A 。
你可以说 much better than similar books which( that) are written before him, 当去掉which，就变成 much better than similar books wittten before him. 就是不能用A。
而B的完整句子应该是
much better than ...

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选B ， 绝对不可能是A 。
你可以说 much better than similar books which( that) are written before him, 当去掉which，就变成 much better than similar books wittten before him. 就是不能用A。
而B的完整句子应该是
much better than similar books which(that) have written before him. 去掉which 后，have也是动词，和前面的was相抵触，一个句子不能同时有两个动词，所以从句的那个动词要么变成ing，要么就像A，本来就是过去分词。
这样说，希望你看得明白。

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