Написать несколько предложения с антонимами artificial-natural, shallow-deep, exact-approximate, quiet-busy, rapid-rough, superior-inferior, light-heavy, emotional-calm, low-high, rigit-flexible, stale-fresh, gently-strong, darko-fair.

- Nowadays, many small football pitches use artificial grass instead of natural. 
- Water parks always have shallow swimming pools for kids to use and deep pools for more experienced swimmers.
- It's not a good idea to make approximate measurements in a scientific laboratory. The scientists have to measure  an exact amount of chemicals to get reliable results.
- This street is usually quiet but it's busy now because of major road works. 
- A rapid response team has been called to assess and treat a patient immediately. The patient was found by a nurse in a rough condition (только это не антонимы).
- In anatomy, the most superior part of the body is the head and feet are the most inferior. 
- All boxers are divided into weight classes, there are different types of heavyweight and lightweight classes. или если нельзя изменить слова, то вот простое предложение Feathers are very light but airplanes are heavy. 
- Some people get very emotional in difficult situations but it's important to keep calm and think rationally. 
- People who want to loose weight tend to eat high-protein and low-fat foods.
- He used to go to a Catholic school which had rigid regulations.  He was very happy to transfer to a different school with more flexible rules. 
- It's not a good idea to eat stale bread. You are better off buying a fresh loaf of bread. 
- My dad is a strong person but he is also very gentle. 
- There are a lot more people in the Scandinavian countries with fair hair and blue eyes than with dark hair and dark eyes.