Re: flour, flower have the same pronunciatin?
I'm one of those people. The words are identical when coming from my mouth.
There's even a joke.
A: Men are so insentive sometimes.
B: What do you mean! No we're not!
A: Okay, fine. What's your wife's favorite flower?
B: Umm... um... unbleached all-purpose, I think.
(For the non-cooks, that's a type of flour.)
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.