Who/Whom have you chosen to take part in the sport

网友回答

我觉着不能用
======以下答案可供参考======
供参考答案1:
这里还原陈述句就是 have you have chosen （ who m) to take part in the sports meet.
很明显句子主语是you , have choosen 是谓语， 选择的对象是宾语，那么变成特殊疑问句就是
Whom have you chosen to take part in the sports meet？
whom 可以被who 代替。
故以上句子是完全正确的。