упражнение 3 . Вставьте нужную форму вс глагола BE (am, is, are) в предложения 1.Kelly_washing her dress in the bathroom. 2.Our teacher_writing something on the blackboard. 3.It _getting dark. 4.The birds_singing sweetly in the garden. 5. I _preparing for my report at the moment. 6.The children_decorating the hall for the party.. 7.People_speaking quietly in the conference-hall. 8.You_waiting for the call.