Liza, "Ask of" had several meanings in English that are now obsolete. In modern English "of" is used with the verb "to ask" to indicate an indirect object in a formal or polite manner: 1) when asking a question. -I asked this question of my old friend, Bob, " Do you still believe in Democracy?" ( Instead of-- I asked my old friend, Bob, this question, "Do you still believe in Democracy?") 2) when making a request for something desired. - Will God give you everything you ask of Him? -I am ashamed to ask another favor of you. 3) when demanding or expecting something (require) -I did everything that was asked of me. -Don't ask too much of a young child.

"I asked her about it." "May I ask you a question?" "Ask him, he might know." It's hard to think of sentences using "asked of" because it sounds very formal so we don't use it often. It's like if you were a servant talking to a king or something like that, at least in Canadian English. "I have something to ask of you." "What you asked of me was too hard." "What was it you asked of me?" Instead, we use "ask me to do." "I have something to ask you to do." "What you asked me to do was too hard." "What did you ask me to do?"