定语从句中,先行词为the one 时,关系代词是不是只能用that答:定语从句中只用that,不用which的情况:先行词是all,much,little,few,something, anything,everything,none,onthing 等不定代词。先行词是to be 后面的表语,或者关系代词本身在从句中作表语。例如 The school is quite different from the one that it used to be.主句以here, there开头。例如 Here ...