Нужно поставить глагол в правильной форме 1. By the time we (reach) the park, it (already/start) raining
2. Joe (study) all afternoon annd was glad when Glen ... (call) him
3. When I (arrive) at the airbort, my sister's flight (nat land) yet.
4.The children ...(be) exhausted because they ...(play) on the beach for hours.
5. The explorers (find) the treasure after they (search) for it for over three days.