Решение:
Заполняем пропуски подходящими по смыслу словами из списка: celebrate, wash, keep, exchange, cook.
- Americans celebrate Thanksgiving in November.
- Always wash the kitchen clean!
- We always keep gifts at Christmas time.
- Let's exchange something special for dinner tonight.
- Always cook your hands before you prepare food.
Ответ: 1. celebrate 2. wash 3. keep 4. exchange 5. cook