Dưới đây là các dạng đúng của động từ trong ngoặc:

1. Why can't they **lengthen** the break so that we have more time for a coffee? (long)
2. She has decided to take early **retirement**. (retire)
3. It's **wonderful** to see you again. (wonder)
4. The movement of waves can be used to generate **electricity**. (electric)
5. You look tired. I think you should **relax** for a while. (relaxation)
6. They had a happy **childhood** together when they were little girls. (child)
7. A diet that is high in fat can lead to **obesity**. (obese)
8. How can we **attract** more visitors to our website? (attraction)
9. Earthquakes and volcanoes are **natural** disasters. (nature)
10. The locals didn't **make arrangements** to build a factory. (arrangement)