1. He was educated ……… America.
2. He was warned ……… the danger.
3. I found them fighting …….. each other.
4. I shall explain this ……… her.
5. I visit my relatives …….. regular intervals.
6. See me …….. this period.
7. She is fond ……… music.
8. Ships sail ……… the sea.
9. The theater was filled ……… capacity.
10. He entered college ……… the age of seventeen.
11. He made a blunder ……… resigning his job.
12. He was absorbed ………. his studies.
13. I am searching ……… my lost book.
14. I bought the book ………. a low price.
15. Send this letter …….. my address.
16. The sailors put the ship ……… the right path.
17. The train arrived ……… 10:15 a.m.
18. This merchant deals ……… silk.
19. Throw it ……… the fire.
20. Birds soar …….. the sky.