some events might be birthday parties, school graduation, business meetings, and grand openings
‘Sorry, you can not use our hospital car park, it is closed for repair’.
Is that the sentence needing to be fixed
Brackets. in quotes, square brackets show that the writer changed the original source. you might use them to change an ambiguous pronoun (such as "he" or "they") to a specific person or group (such as "abraham lincoln" or "school teachers"). they're also used to modify the phrasing of the original source to fit your sentence, such as changing a verb from from present tense to past tense.