22.No one knows exactly when our ancestors started talking，but new evidence suggests might have happened a long time ago.
A.which B.what C.it D.they
答案 C
21. professional violinist practices for several hours a day，but violinist has
his own way of playing the Beethoven concert.
A.Each;every B.Every;each C.All;every D.Either;every
答案 B
20.-What do you think of the furniture on exhibition?
-Well，great!But I don’t think much of you bought.
A.the one B.it C. that D.which
19.I miss Melanie and would hate if our relationship is over for good.
A.it B.that C.this D.one
答案 A
18.-Where can we spend our Christmas holiday this year?
-Oh，if it agrees with you，we can go to` of the southern cities.
A.all B.any C.each D.another
17.Finding a way to save the environment without sacrificing economic growth is not just China’s
own business but also closely watched by the rest of the world.
A.that B.this C.the one D.one
答案 D
16.I would appreciate ，to be frank，if the goods could be delivered as soon as possible.
A.you B.this C.it D.myself
15.Cook was a strict but good captain， who，usually，took care of the sailors on his ship.
A.the one B.one C.that D.this
14.It is so difficult a problem that students in this class work it out.
A.any;can’t B.no;can C.every;can D.no，can’t
13.-Oh，no!This stupid compcoter has crashed again!
-Well，you can try one，since there are so many available.
A.another B.other C.the other D.others