Habit or custom

Vprašanje 1
Complete the sentences with custom or habit in the correct form.
1. There are several legends about how the of hanging Christmas stockings arose.
2. Good eating are essential.
3. I am unfamiliar with the of China.
4. Eating sweets between meals is a bad .
5. I didn’t know anything about their and traditions when I first moved there.
6. He has a of popping chewing gum.
7. I have to stop biting my nails. It's a bad .