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Paper money was in       use in China when Marco Polo visited the country in

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

For a long time they walked without saying _________ word. Mike was the first to break __________ silence.

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

He is ______ young volcanologist in ______ observatory but he has already made some important discoveries.

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

______ man may usually be known by the books he reads as well as by ______ company he keeps.

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

World Expo 2010 Shanghai China, a grand-scale global event, has ______ the significant theme “Better City, Better Life.”

A. abandoned       B. adopted            C. advocated       D. adapted

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

—Did you enjoy yourself yesterday?

—Yes. As you know, ________ party went on in ________ most pleasant atmosphere.

A. the…a    B. the…the    C. a…the    D. a…a

When you are in face of ______ failure, you’d better keep up ______ good state of mind.

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

It takes us ________ hour or more to go to my hometown by ________ train.

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

No one knows how large           universe is， but           man has never given up the  attempt to explore new stars and new planets.

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