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23.(2010·鹽城模擬)We have every reason to believe that ______ 2010 World Expo in Shanghai will be ______ success.

A. /; a 　　 　　 B. the; /　　　 　 C. the; a 　　 　　 D. a; a

22.(2010.蕪湖模擬)China wants _____ greater say in the decision-making of the International Monetary Fund, and tougher regulations on _____ financial system in wealthy countries to prevent future problems.

A. a; the 　　 B. the; 不填　 　C. the; the　　 　D. a; 不填

21. (2010·南京模擬) In 1948, three American scientists invented ______ transistor, which is ______ small electronic device to control an electric current.

A. the; a　 　　 　　 B. a; a　　 C. the; the　 　　D. a; the

20.(2010·安徽兩地聯(lián)考)Many of　　 friends British people make at school remain　　 friends for life, so it

is　 true that schooldays are “the best of life”.

A．the；不填　　 　B．the; the　 　 　C．不填; the　 　D．不填；不填

19. (2010·濟南模擬)He wrote ______ song, which turned out to be rather popular with ______ young.

　　　　　　　　　　　 A. the; the　　　 　　 B. a; 不填　　　　　 　C. a; the　　　　 　D. the; 不

18.(2010·蕪湖模擬)-Really? Who will give 　　　　lecture? What is it about?

-Professor Chen, 　　　　　president of Beijing University About pollution.

A．the; a 　　　B．the; /　 　 　C．a(chǎn); the 　 　　　D．a(chǎn); a

17.(2010·沈陽模擬)My summer job wasn’t ____ fun, but it was ____ real learning experience for me.

A. a; a　　　 　B. the; /　　　 　C. /; a　　　 　　D. a; /

16.(2010·沈陽模擬)As is known, it was Hu Jintao, ____ president of our nation, who gave ____ lecture at the opening ceremony.

A. the; a　　 　B. the; /　　 　　C. a; the　　 　　D. /; a

15.(2010·沈陽模擬)--Do you mean you know ________ boy?

--No, I know ________ boy who looks like him.

A. a, a　　　 　　　B. the, the　　　　　 C. the, a　　　　　 D. a, the

14.(2010·沈陽模擬)Alexander Graham Bell invented ________ telephone in 1876.

A. /　　　　　 B. the　　　　 C. one　　　 　　　D. a