1. Many people in the village have cholera because they drink untreated water.
2. He enjoys socializing with friends and it costs nothing.
3. His lack of control worries his parents the most.
4. There are a few survivors in the village after a sudden tornado.

III

1. Our beautiful forests will be destroyed if we do nothing to preserve them.
2. As soon as Mr. John arrived at the airport, he realized that he had left his passport at home.
3. Don't ring me between 8 and 9 tomorrow. I will be having a meeting then.
4. Sarah said that she was working.
5. It's high time something was done.
6. Were you in my position, what would you do to prevent traffic jams in big cities?
7. His greatest ambition is to be chosen to take part in the Olympic Games 2020 in Japan.
8. She is looking forward to being invited to Linda's birthday party next Sunday.