B how to solve 是对的
没有who to solve the problem的用法.如果想表达“不知道让谁来解决这个问题.”是I really don't know who we should ask to solve the problem
B how to solve 是对的
没有who to solve the problem的用法.如果想表达“不知道让谁来解决这个问题.”是I really don't know who we should ask to solve the problem