Вопрос по английскому языку:

Exercise 2. Fill in the gaps with the prepositions through, for, by, across, to, in, of, in, by,
for, from, in, across.
1. Swimmers move __________ water __________ using the arms and legs.
2. People __________the very young __________ the elderly swim __________ fun.
3. People swim __________ lakes, oceans, and rivers.
4. Thousands __________ swimmers compete ________ swimming galas held __________
schools, colleges and swimming clubs.
5. Many long-distance swimmers attempt such feats as swimming ____________ the English
Channel or ___________ the Cook Strait.
6. There is an emergency __________ the water.
7. Swimming is one of the best exercises ____________keeping physically fit.