Fill in the blank with the appropriate preposition:
The assignment must be submitted ___________ next Monday.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → by
Complete sentence: The assignment must be submitted by next Monday. The assignment must be submitted by next Monday: on Monday or before it, but no later.
| Option | Used to show | Example |
|---|---|---|
| (1) for | For with time shows a period (for two hours) or a purpose or occasion (for the meeting). "Submitted for next Monday" does not set a deadline. | We waited for an hour at the station. |
| (2) in | In is used with months, years and parts of the day (in May, in the morning), not before a particular day like "next Monday". | The exams begin in March. |
| (3) to | direction or the end of a range (from Monday to Friday). It cannot express a deadline on its own. | The shop is open from nine to five. |
| (4) by (answer) | The preposition by, used with a time, means not later than. It is the usual preposition for deadlines. | Please send your reply by Friday evening. |