定语从句中,引导词什么时候用that ,which,who,whose,where,when?_百度...答:when指代时间,也是在句中作状语.记住:that不能用在介词后,如 he is my friend with that I travel to London.这是错的 that也不能用在非限制性定语从句 I love him ,that is a good man.这是错的 在there be 句型中,只用that,不用which 在不定代词,如:anything,nothing,the one,all,...