As the plane circled over the airport, everyone sensed that something was wrong.The plane was moving unsteadily through the air, and 1 __________the passengers had fastened their seat belts, they were suddenly 2 __________forward.At that moment, the air-hostess 3 __________.She looked very pale, but was quite 4__________ .Speaking quickly but almost in a whisper, she 5__________ everyone that the pilot had 6__________ and asked if any of the passengers knew anything about machines or at 7__________ how to drive a car.After a moment 8__________ , a man got up and followed the hostesssintosthe pilot's cabin.Moving the pilot 9__________ , the man took his seat and listened carefully to the 10__________ instructions that were being sent by radio from the airport 11__________ .The plane was now dangerously close 12 __________the ground, but to everyone's 13__________ , it soon began to climb.The man had to 14__________ the airport several times insgroupsto become 15__________ with the controls of the plane. 16 __________the danger had not yet passed.The terrible 17__________ came when he had to land.Following 18__________ , the man guided the plane toward the airfield.It shook violently 19__________ it touched the ground and then moved rapidly 20 __________the runway and after a long run it stopped safely.

　　1.A.although B.while C.therefore D.then

　　2.A.shifted B.thrown C.put D.moved

　　3.A.showed B.presented C.exposed D.appeared

　　4.A.well B.still C.calm D.quiet

　　5.A.inquired B.insured C.informed D.instructed

　　6.A.fallen B.failed C.faded D.fainted

　　7.A.best B.least C.length D.first

　　8.A.hesitation B.surprise C.doubt D.delay

　　9.A.back B.aside C.about D.off

　　10.A.patient B.anxious C.urgent D.nervous

　　11.A.beneath B.under C.down D.below

　　12.A.to B.by C.near D.on

　　13.A.horror B.trust C.pleasure D.relief

　　14.A.surround B.circle C.observe D.view

　　15.A.intimate B.familiar C.understood D.close

　　16.A.Then B.Therefore C.But D.Moreover

　　17.A.moment B.movement C.idea D.affair

　　18.A.impression B.information

　　C.inspections D.instructions

　　19.A.as B.unless C.while D.so

　　20.A.around B.over C.along D.above