Odpowiedź:
1. Kayaking down a river is difficult.
It's difficult to kayak down a river.
2. Swimming with sharks is dangerous.
It's dangerous to swim with sharks.
3. Learning English isn't easy.
It's not easy to learn English.
4. Surfing a big wave is great.
It's great to surf a big wave.
5. Travelling to other countries is great.
It's great to travel to other countries.
6. Doing exercise is important.
It's important to do exercise.
7. Reading books isn't boring.
It's not boring to read books.
Wyjaśnienie:
