1)укажите правильную форму глагола в скобках:
she set her eyes on the trees that (to sway) darkly in the distance.
2)if the dog (to run) after the rabbits,it will be punished.
3) вставьте нужный предлог:
girls tend to express a greater interest participating in politics than boys.

Объяснение:

1) She set her eyes on the trees that were swaying darkly in the distance.  (Past Continuous).

2) If the dog runs after the rabbits, it will be punished.  (Present Simple, потому что это условное предложение)

3) вставьте нужный предлог:

Girls tend to express a greater interest in participating in politics than boys.