We told him to consult the doctor, which advice he took.
这里的which能否改为whose?
which不可改为whose，改为whose意思就变了。which advice 指代 toconsult the doctor。句子意思为：大家让他去看大夫，他采纳了大家的这个建议（即他去看大夫了）。假如改为whose，则whoseadvice意为the doctor's advice. 意思就完全不同了。原句的意思也可以用并列句表示，即 We told him to consult the doctor, and he took this advice. 当大家把这个并列句改为关系分句时，仅需删去并列标记and, 然后用关系限定词which替换指示限定词this，并将whichadvance移至主语前引导关系分句即可，就提问中的句子。