Fill in the missing prepositions where necessary.

Решение:

1. What subjects are you good at?
2. If the pupil can't get rid of his mistakes he won't get a good mark.
3. Ann always leads her younger brother across the heavy traffic.
4. When a child asks his parents to buy a pet, they should discuss who will look at it from the very beginning.
5. When you take your dog for a walk you like to go side by side with it. Don't forget to put your pet on the leash for the crossing.
6. The kerchief slipped from the shoulders and fell on the girl's feet.
7. Don't forget to introduce your friends to your parents.
8. I can't insist on your coming, but I'll be glad if you call me at least half an hour.

Ответ: at; of; across; at; for, by, with, on, for; from, on; to; on, me, at.