Rewrite sentences 1-7 using the infinitive of purpose, but don't change the meaning.
- People go to the gym because they want to keep fit.
 - People shop online because they want to find the cheapest price.
 - People take taxis because it saves time.
 - In the future, more people are going to cycle to work because they want to do more exercise.
 - People grew vegetables at home in the past because they needed to feed their families.
 - People are going to learn more foreign languages in the future because it helps them find a job more easily.
 - In the past, people moved to the city becausethey wanted to find a job.