Which one of the underlined words or phrases is INCORRECT? I don't had enough money to buy a bus ticket, so I'll…

If I. .......... how a good teacher Mr. Taylor was, I would have enrolled in his class years ago.

John: excuse me. Is everything ok? Mark: yes, I can’t remember where ....... my car last night.

Which sentence has the CORRECT WORD ORDER?

Mrs. Smith asked the teacher … .............. angry with her son.

Hannah ................. to write a good paper until her second year at university.