Prepositions On, By, With

Answers

1. I sent the parcel by post.
2. They opened the door with a lock.
3. I would like to pay by card.
4. By mistake I sent the letter to the wrong address.
5. You did it on purpose.
6. I went there on foot.
7. I got on the bus.
8. She is arriving on the 5.30 train.
9. I am reading a novel by Tolstoy.
10. She sat by her mother.
11. She spoke in a low voice.
12. He has a good relationship with his parents.