"So, what you're saying is _______" "Am I to understand ______?" just sounds more formal. It sounds like what a teacher would say to you when you're in trouble. I think I can go into more detail if you'd like, but that's the gist of it.

I'm wondering the same as above. I'm a native speaker and I wouldn't make taking the test if it would help you out.

It sounds odd. "How is that word spelled?" "How is it spelled?" "How do you spell that word?" Those sound better. :)

"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?"

Funning isn't a word in English, at least not in Canada. We say "having fun." Funny is something that makes you laugh.