2 Упражнение. Вставьте if или when в пропуски. Оба варианта могут быть верными, если они подходят по смыслу.

When you go to Moscow, you can see Red Square. When it's cold in Russia, people wear warm coats. If a British person says "I'm fine", it doesn't always mean they really are. When you learn English, you understand more about British culture. When Russians celebrate New Year, they decorate a Christmas tree.