As the plane circled over the airport, everyone sensed that something was wrong. The plane was moving unsteadily through the air, and【C1】______the passengers had fastened their seat belts, they were suddenly【C2】______forward. At that moment, the air-hostess【C3】______.She looked very pale, but was quite【C4】______.Speaking quickly but almost in a whisper, she【C5】______everyone that the pilot had【C6】______and asked if any of the passengers knew anything about machine or at【C7】______how to drive a car. After a moment's【C8】______, a man got up and followed the hostess into the pilot's cabin. Moving the pilot【C9】______, the man took his seat and listened carefully to the【C10】______instructions that were being sent by radio from the airport【C11】______. The plane was now dangerously close【C12】______the ground, but to everyone's【C13】______, it soon began to climb. The man had to【C14】______the airport several times in order to become【C15】______with the controls of the plane.【C16】______the danger had not yet passed. The terrible【C17】______came when he had to land. Following【C18】______, the man guided the plane towards the airfield. It shook violently【C19】______it touched the ground and then moved rapidly【C20】______the runway and after a long run it stopped safely. 【C1】