The question asked covers more ground than just have or has. I think OP's example is just one example and the question asked is in order to know if who agrees with the verb when who is.
Has Any Socialist Country Ever Succeeded In The Modern Age Now - Democracy at Work & Society
The question asked covers more ground than just have or has. I think OP's example is just one example and the question asked is in order to know if who agrees with the verb when who is.
