Travelling can be fun and easy.A vacation trip to another country is especially __1_ when the travelling conditions are good.Good travelling conditions __2_ a comfortable mode of transportation,knowledge of the __3_ language,familiarity __4_ the custom and habits of the people in the country,and pleasant travelling __5_.All of us have had nice trips __6_ this.

　　Most of us have aslo had trips that we would __7_ to forget.Many conditions can produce a bad __8_ experience.For example,if the four conditions __9_ above do not exist,we will probably have a bad experience,__10_ at best a difficult __11_.Students who travel to a __12_ country to study often have a difficult trip.They usually travel __13_.They don't know the language of the new country __14_.They often arrive in the new country __15_ a judge international airport.From the airport,they need to __16_ their way to their school.Maybe they need to __17_ airplanes,to take a bus,a train,or a taxi.They need to do all this in a country__18_ everything is unfamiliar.Later,after the experience are __19_,they can laugh.But at the __20_,they feel terrible.

　　1) A happy B enjoyable C amusing D favorable

　　2) A include B conclude C hold D contain

　　3) A place's B area's C country's D city's

　　4) A to B for C of D with

　　5) A companions B friends C comrades D fellows

　　6) A with B as C like D of

　　7) A have B think C wish D need

　　8) A tripping B travelling C passing D visiting

　　9) A told B numbered C talked D listed

　　10) A or B and C but D so

　　11) A case B one C thing D practice

　　12) A different B another C foreign D other

　　13) A separate B lonely C alone D single

　　14) A yet B either C too D already

　　15) A at B to C on D from

　　16) A watch B see C notice D find

　　17) A thift B exchange C board D change

　　18) A where B that C when D which

　　19) A ended B over C completed D finished

　　20) A date B time C while D day

　　答案：BACDA　CCBDA　BCCAA　DDABB