[不定项选择题]David Smith wears casual clothes now, because___________.
A.they make him feel at ease when working
B.he cannot afford to buy expensive clothes
C.he looks handsome in casual clothes
D.he no longer works for any company

[不定项选择题]共用题干 For nearly 17 years David Cope has worked as one of the Tower of London's yeoman warders, _________(51)known to tourists as beefeaters.David,64,lives in a three-bedroomed flat right at the_______(52)of the Byward Tower,one of the gatehouses."_________(53)our bedroom we have a marvelous view of Tower Bridge and the Thames",says David.
The Tower of London is famous__________(54)its ravens,the large black birds which have lived there for over three centuries.David was immediately fascinated by the birds and when he was _________(55)the post of Raven Master eight years ago he had no_________(56)in accepting it. "The birds have now become my life and I'm always_________(57)of the fact that I am _________(58)a tradition.The legend says that if the ravens leave the Tower,England will fall to enemies,and it's my job to__________(59)sure this doesn't happen!"
David________(60)about four hours a day to the care of the ravens.He has grown to love them and the_________(61)that he lives right next to them is ideal."1 can_________(62)a close eye on them all the time,and not just when I'm working."_________(63),David's wife Mo was not __________ (64)on the idea of life in the Tower,but she too will he sad to leave when he retires next year."When we look out of our windows,we see history_________(65)around us,and we are taking it in and storing it up for our future memories." _________(65)
A.every
B.all
C.much
D.so

[不定项选择题]共用题干 I'll Be Bach
Composer David Cope is the inventor of a computer program that writes original works of classical music.It took Cope 30 years to develop the software.Now most people can't tell the difference between music by the famous German composer J.S.Bach(1685-1750)and the Bach-like compositions from Cope's computer.
It all started in 1980 in the United States,when Cope was trying to write an opera.______(46)At first this music was not easy to listen to.What did Cope do?He began to rethink how human beings compose music.He realized that composers'brains work like big databases.First,they take in all the music that they have ever heard.______(47)Finally,they make new music from what is left.According to Cope,only the great composers are able to create the database accurately,remember it,and form new musical patterns from it.
Cope built a huge database of existing music.He began with hundreds of works by Bach.The software analyzed the data:it broke it down into smaller pieces and looked for patterns.It then combined the pieces into new patterns._______(48)They weren't good,but it was a start.
Cope knew he had more work to do-he had a whole opera to write.He continued to improve the software.Soon it could analyze more complex music.He also added many other composers,including his own work,to the database.
A few years later,Cope's computer program,called"Emmy",was ready to help him with his opera.______(49)Cope listened to the computer's musical ideas and used the ones that he liked.With Emmy,the opera took only two weeks to finish.It was called Cradle Falling,and it was a great success! ______(50) Since that first opera,Emmy has written thousands of compositions,Cope still gives Emmy feedback on what he likes and doesn't like of her music,but she is doing most of the hard work of composing these days! ______(50)
A.By developing a computer software,David Cope aimed to write an opera.
B.Cope received some of the best reviews of his career,but no one knew exactly how he had composed the work.
C.He was having trouble thinking of new melodies,so he wrote a computer program to create the melodies.
D.The process required a lot of collaboration between the composer and Emmy.
E.Before long,the program could compose short Bach-like works.
F.Then they take out the music that they dislike.