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33.Braille, ________by a Frenchman, is a language ________for the blind.(P21)

A.discovered; designed                         B.created; meaning

C.invented; meant                              D.produced; intended

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32.Language, in a ________sense, is the way information is expressed.(P21)

A.wide                  B.long                  C.deep                  D.broad

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31.______this compass works_______a mystery.(P19)

A.Why; is               B.How;still             C.Whether;known as  D.How;remains

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30.During both World I and II, pigeons were employed by armies ________messages to and from the front line, ________the lives of many soldiers and even helping win some important victories.(P19)

A.to carry; saving       B.carrying;to save           C.carrying; saving      D.to carry;to save

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29.However, it was in war________they found the greatest use of pigeons.(P19)

A.where                 B.in which              C.that                   D.what

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28.Instead, pigeons have been known________home from as far away 1,800 kilometers, ________ is________pigeons have been used since ancient times.(P19)

A.which,for which      B.what;why             C.that;for which        D.which;why

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27.Though it may seem hard________, the bird the officer uses is the same bird often _______in public parks---the pigeon.(P19)

A.to be believed;seeing                         B.to believe;seen

C.believing;being seen                          D.believed;seen

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26.________the message to its leg, he sets the bird________,which immediately flies into the air and disappears in the dark.(P19)

A.Attaching;loose                               B.To attach;loosely

C.Attached;loose                                D.Having attached;loosely

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25.He rolls up the paper and puts it into a small case, and then________into a case and ________a bird.(P19)

A.reaching; getting     B.reaches; getting      C.reaching; gets        D.reaches; gets

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24.Don’t be frightened by sharks:you are 30 times more________to be hit by lightning than________attracted by a shark.(P18)

A.possible;be                B.probable;to be       C.likely; be             D.maybe;to be

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