24、To our great joy, it snowed _____ the night of Feb．14 this year in Shanghai, arousing the curiosity of the residents．

A．in           B．for           C．at             D．on

22、To everyone’s surprise,        painting, with        simple design of some natural scenery, won the first prize in the competition.

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

21、One cause of high oil prices is the weak American dollar. Oil is       in dollars, so a less valuable dollar buys less oil.

A．traded           B．bargained         C．exchanged         D．attached

20、The company employs famous actresses as its spokeswomen to make its new products       

to the public.

A．know               B．known           C．knew            D．to know

19、Ten years ago the population of our city was      that of theirs.

A．as twice large as                                B．twice as large as

C．twice as much as                               D．as twice much as

18、-This passage is difficult for me. Could you please explain it to me?

-I’m afraid I have to say sorry, but the book is         my understanding.

A．beyond          B．over          C．above         D．off

17、-Where is your new home now?

-In the new developed zone. But I         downtown for five years.

A．have lived           B．had lived          C．lived          D．was living

16、To improve your health, you can      25 to 30 minutes three or four times a week to do simple things such as walking, cycling or running.

A．give off          B．turn down          C．take over           D．set aside

15、-Hello! May Flower Hotel. Can I help you?

-Do you have a room       for this weekend?

A．comfortable          B．present          C．absent          D．available