Re: Object or objective complement?
I don't want to start an argument, but why would it matter to them either? Aside from passing a useless grammar test, will knowing what to call it help them write better sentences? Will their grammar be more correct, knowing that it's a complement? I don't think so. Knowing the labels for things doesn't help in communicating.
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.