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As is known to all, ________ People's Republic of China is ________ biggest developing country in the world.(2011·陜西)

A．the；/ B．/；the C．the；the D．/；/

—I am so sorry to have come late for the meeting.

—It is not your fault.With ________ rush－hour traffic and ________ heavy rain，it is no wonder you were late.

A．a；a B．the；the C．/；/ D．/；a

What I need is ______ book that contains ________ ABC of oil painting.

A．a；/ B．the；/ C．the；an D．a；the

The biggest whale is ________ blue whale，which grows to be about 29 meters long—the height of ________ 9－story building.

A．the；the B．a；a C．a；the D．the；a

Obama has been elected ________ first black President of the United States, and the international society expects to have ________ new USA under his leadership.

A．/；the B．a；the C．the；a D．the；the

________ China's growth is not ________ threat to others.On ________ contrary, it will bring more opportunities to the world.

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

Last Sunday，we took ________ guided walk around by ________ signs of the famous town.

A．the；the B．a；/

C．the；/ D．a；the

Eggs are sold by ________ dozen while the meat is charged by ________ weight.

A．the；the B．the；/ C．/；the D．/；/

Sam has been appointed ________ manager of the engineering department to take ________ place of George.(2012·重慶)

A．/；/ B．the；/ C．the；the D．/；the

Some people fear that ________ air pollution may bring about changes in ________ weather around the world.(2009·江西)

A．/；the B．the；/ C．an；the D．the；a