Relacionar Columnas IV LEVEL UNIT 4 CHALLENGES Lesson 2Versión en línea Reinforce questions and proper answers. por Martha Uribe 1 Why hadn´t he called for help? 2 What had Aron been doing when the accident happend ? 3 Why hadn´t anyone come to look for him? 4 How long had he waited in the canyon ? 5 What had he been doing when he met the hikers ? 6 What had he done to get away ? Because he hadn´t brought his cell phone with him. He had been walking out of the canyon. He had cut his arm off. He had waited in the canyon for five days. He had been climbing in a remote canyon. Because he hadn´t told anyone where he was going.