it was said( )( )was all( )()girl said.A.that;what;what B.that;/;

问题描述:

it was said( )( )was all( )()girl said.A.that;what;what B.that;/;
it was said( )( )was all( )()girl said.A.that;what;what B.that;/;what C.that;that;that that D.that;what;that what 我知道可以选择c,d 第二个先行词选择what,第四个也选择what为什么不对呢?

第一个是固定短语,it was said that
此处的that不做任何成分,只是连词,可以省略
what在句子中做主语,表语或宾语在这什么都不缺,应选连词 that