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
Sam has been appointed ________ manager of the engineering department to take ________ place of George.(2012·重庆)
A．/；/ B．the；/ C．the；the D．/；the
Eggs are sold by ________ dozen while the meat is charged by ________ weight.
A．the；the B．the；/ C．/；the D．/；/
Last Sunday，we took ________ guided walk around by ________ signs of the famous town.
A．the；the B．a；/
C．the；/ D．a；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
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
