一、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 moments __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