In the last five years there have been no murders,seven robberies,and about sixty other violent attacks,most of these involving fights at parties.请问most of these involving fights 是否可改为most of which.原句是否正确?逗号后的代词

In the last five years there have been no murders,seven robberies,and about sixty other violent attacks,most of these involving fights at parties.请问most of these involving fights 是否可改为most of which.原句是否正确?逗号后的代词不是得用which吗?

如果用which则involving要改成involve,那么which在这里就可以指代murders, seven robberies和sixty other violent attachs,与句子的意思就不统一了.
用these则表示these仅仅指代sixty other violent attacks,和前面的内容无关.

因为这是一个独立主格结构，而不是一个句子。

原句正确，逗号后的代词不能用which，因为which不能指代前面提到到的robberies