【答案】B 【解析】此句中先行词all为不定代词,从句为is useful to people,从句缺主语, 二者构成的完整句为All is useful to people.为了便于理解,All =All the things/ everything.所以从句的完整句还可以写成Everything is useful to people; 或All the things are useful to people. (责任编辑:admin) |
【答案】B 【解析】此句中先行词all为不定代词,从句为is useful to people,从句缺主语, 二者构成的完整句为All is useful to people.为了便于理解,All =All the things/ everything.所以从句的完整句还可以写成Everything is useful to people; 或All the things are useful to people. (责任编辑:admin) |