Homophones sound the same but mean different things (their / there / they're). Near-homophones sound almost the same (accept / except). In Stage 1 you choose the word that fits the sentence. The trick is never to listen — always check what the sentence means.
their = belonging to them (it has the word heir in it — ownership). there = a place (it has here in it). they're = they are (the apostrophe replaces the missing letter).
Test: Can you say "they are"? Use they're. Is it a place? Use there. Does someone own it? Use their.
you're = you are; your = belonging to you. it's = it is / it has; its = belonging to it.
Test: If "it is" or "you are" fits, use the apostrophe one. Possessives (its, your) never take an apostrophe.
accept = to receive or say yes (begins like a in "agree"). except = apart from / leaving out (the ex- means "out").
Test: "ex" = "exit/out", so except leaves something out.
In British English the noun ends in -ice (a thing) and the verb ends in -ise (an action).
Test: Swap in "advice / advise" — you can hear the difference. The -c- word is the noun.
to / too / two: too = also/very; two = 2; to = everything else. where / wear / were: where = place; wear = clothes; were = past of "are". here / hear: you hear with your ear.
affect (verb, to change) / effect (noun, the result). quiet (silent) / quite (fairly). passed (went by) / past (time gone / beyond). weather (rain/sun) / whether (if).
Read the question, then the answer with the rule that solves it.