Сделайте следующие предложения отрицательными, используя союз not.. so as 1. in summer the trees are as beautiful as in autumn. 2. your friend’s room is as big as yours. 3. during the holidays the students are as busy as during the academic year. сделайте следующие предложения утвердительными, используя союз as: 1. lesson 2 is not so difficult as lesson 5. 2. this magazine is not so thick as that book. 3. the flowers in spring are not so beautiful as in summer. 4. there are not so many cars and buses in this street as in the centre of the city.