First impressions are the most lasting.After all, you never get ________ second chance to make ________ first impression.(2010·北京)
A．a；the B．the；the C．a；a D．the；a
It is generally accepted that ________ boy must learn to stand up and fight like ________ man.(2011·全国)
A．a；a B．a；the C．the；the D．a；/
We can never expect ________ bluer sky unless we create ________ less polluted world.(2009·安徽)
A．a；a B．a；the C．the；a D．the；the
(2011·浙江)Experts think that ________ recently discovered painting may be ________ Picasso.
A．the；/ B．a；the C．a；/ D．the；a
(2011·山东)Take your time—it's just ________ short distance from here to ________ restaurant.
A．/；the B．a；the C．the；a D．/；a
(2012·安徽)Carl is studying ________ food science at college and hopes to open up ________ meat processing factory of his own one day.
A．/；a B．/；the C．the；a D．the；the
