‘at’ , ‘on’ or ‘for’
Which preposition?
Could you tell me which of these sentences are correct?
1. a) She knocked at the door; b) She knocked on the door.
2. a) She was late for school; b) She was late to school.
3. a) She is pointing at the crab; b) She is pointing to the crab.
All the sentences are correct.
1. You can say “knock at” or “knock on” a door, although
“knock on” is more commonly used.
2. “Late for school” and “late to school” are both correct.
Q: What if my child is late to school?
A: Arriving late for school is an obvious bad start to the day …
3. You can say either “pointing at” or “pointing to”, although the latter is more commonly used.
