The rules
- Use at for clock times, on for days and dates, and in for months, years and seasons: at 7 o’clock on Monday in July.
- Use at for a point, on for a surface and in for an enclosed space or area: Wait at the gate; the book is on the table in the room.
- Use since with a starting point and for with a length of time: She has lived here since 2020, for six years.
- During is followed by a noun, and while by a clause with a verb: during the lesson, while the teacher was talking.
- By means no later than, and until means continuing up to that time: Finish it by Friday, and keep it until Monday.
- Many verbs and adjectives take a fixed preposition: depend on, consist of, interested in, good at, famous for.
- Use between for two and among for more than two, and put a verb after a preposition in the -ing form: between the two trees, among the students, before leaving.
This time: 0 right, 0 wrong