题目内容：

As the plane circled over the airport, everyone sensed that something was wrong. The plane was moving 1. (steady) through the air, and although the passengers 2. (fasten) their seat belts, they were suddenly thrown forward. At that moment, the air – hostess came. She looked very pale, 3.was quite calm. Speaking quickly and almost in a whisper, she informed everyone that the pilot had fainted and asked if any of the 4. (passenger) knew anything about machines. After a moment’s hesitation, 5. man got up and followed the hostess into the pilot’s cabin.  Moving the pilot aside, the man took his seat and listened carefully to the urgent instructions that 6. (send) by radio from the airport below. To everyone’s relief, the plane, 7. was dangerously close to the ground at the moment, soon began to climb. The man had to circle the airport several times to become familiar 8.the controls of the plane. The critical moment came 9. he had to land. The man, 10. (follow) the instructions, guided the plane toward the airfield, and it landed safely after a long run along the runway.