Прочитайте текст. Вставьте вместо каждого пропуск, обозначенного буквами А-Е, нужную грамматическую форму, выбрав её из трёх предложенных вариантов (1, 2 или 3). Lake Baikal Have you heard about Lake Baikal? It is the A___ lake in the world, which is located in Siberia, Russia. It contains B___ of fresh water. Many animals live there, including some fish which can only be found in this lake. Scientists who study Baikal say that it is very clean and clear. People who visit Baikal C___ enjoy beautiful views and fresh air. You should visit Baikal if you want to see nature at its best. While I D___ there last summer, I was taking photos of the mountains and the water. You must be careful when swimming because the water may be cold even in summer. Everybody who E___ nature will find something special at Lake Baikal.