判断下列句子是否有误：With no one taking care of him, the boy had to be on one's own after his father's death.A 对B 错

考查要点：本题主要考查代词的指代一致性问题，特别是物主代词与先行词的指代关系。
解题关键：句子中的“the boy”是男性单数，需判断“on one's own”中的“one's”是否与“the boy”在性别、数上保持一致。若存在明确的先行词，应优先使用对应的物主代词（如“his”）而非泛指的“one's”。

原句中的“the boy”是男性单数，而“on one's own”中的“one's”是泛指代词，无法准确指代前文的“the boy”。

1. 代词一致性错误：
   “one's”通常用于泛指任何人（如“Anyone can make mistakes on one's own”），但本句中“the boy”是具体指代对象，需用“his”明确指代。
2. 正确表达：
   应将“on one's own”改为“on his own”，使物主代词与“the boy”在性别和数上一致。
3. 修正后的句子：
   With no one taking care of him, the boy had to be on his own after his father's death.