先行詞是those引導詞用什麼

定語從句先行詞是those

That(指物)和those(指人或物)可做定語從句的先行詞，this和these不可做先行詞，those做定語從句先行詞時，當其指物關係詞用that/which等，當其指人時，關係詞用who等，具體示例如下：

He admired those who looked beautiful.他很喜歡那些看上去很美的人.(指人)

He admired those which looked beautiful.他很喜歡那些看上去很美的東西.(指物)

(錯)He admired that who danced well.(that不能指人)

(對)He admired those who danced well.他讚賞跳舞好的人.(those可指人)

those後接定語從句時，通常用關係代詞who來引導。如：

Those who do not wish to go need not go. 不願去的人不需要去。