English students, test your prepositions 😁

C1 practise for you all!

Here it is a challenging one for English learners. What’s your guess?

Hi English native speakers! 👋 i would like to report to my client that i have completed filing of a document. Is it awkward to say “I have filed document A on Sep. 28” or “I have filed document A today” ? The point is… can i use have pp with a specific date when it means completion?

"Labour-saving appliances were commonplace in the home by the 1960s." Does "by" in this context mean "in" or "until"?

English learnes: -I need a few days to mull things over before I decide if I'm quitting my job🤔

English students! What's the correct answer?