Hoàn thành các câu sau sử dụng từ cho trước (chia động từ nếu cần thiết).

start           get          increase      change             rise

1. The population of the world ............................................... very fast

2. The world......................................... Things never stay the same

3. The situation is already bad and it.............................worse

4. The cost of living............................................Every year things are more expensive.

5. The weather.............................to improve. The rain has stopped, and the wind isn't as strong