是定语从句中只能用that的情况吧?定语从句中只用that的情况：① 先行词由最高级修饰时，如the best work that I can do。② 先行词由序数词修饰时，如the second book that I bought。③ 先行词由the last, the only, the same, the very等修饰时。④ 先行词是不定代词all, anything, everything, little, much, nobody, nothing等时，如anything that he does; all that I can do now等。⑤ 先行词有any, no, all等限定词时，如all the words that I’ve learned。⑥ 先行词为词组，该词组既含人又含物时，如the city and the people that I visited。