He ___ to bed, for the light is out.

    A.must have gone   B.must go    C.can have gone   D.can go

If you leave the club， you will not be _____   back in . 

 A. received        B. admitted       C. turned      D. moved

-----Where _____you put the ruler? I can't see it anywhere.

----I put it right here. But now it is ____.

A. have, gone B. did, missed C. had ,going D. will, missing

There must be ______ book which could help .

A. some      B. any     C. one       D. one useful

______ running,learning English needs will.

A.As with B.As to              C.As for    D.As if

完形填空（共10小题；每小题２分，满分20分）

阅读下面短文，掌握其大意，然后从21－30各题所给的ABC和D项中，选出最佳选项．

The finest and most sought-after violins were handcrafted by an Italian violin maker over 250 years ago. The man’s name was Antonius Stradivarius. He was born in 1644 and began his career   21   a violin maker’s apprentice (学徒). Working on his own by 1680, he became determined to make   22   that could reproduce tones as rich as those produced by the human voice. He  23    several shapes and styles for his violins until he arrived at a design that pleased him. During his career he crafted 1,100 violins. Those in   24   have become treasured possessions.

    Unfortunately, the secret of the Stradivarius violin died with its maker. During his lifetime Stradivarius kept his notes safely   25  , even his two sons, who helped him in his workshop, did not know all the steps involved in each violin’s construction.

    Through the years, many experts have offered    26   explanations for the unique tone of a “Strad”. Some say it is due to the violin’s shape. Others suggests that the secret    27   the special properties(特性) of the wood, which Stradivarius obtained from native Italian trees that no longer exist. The most widely accepted explanation is that it is created by the varnish（清漆） that the    28    used to coat his violins. Chemists have analyzed as closely as possible the varnish and have found its    29    has improved the sound of many violins.   30   , no other violin maker has been able to fully reproduce the tone of the Stradivarius’s violins.

21.  A. with                B. as               C. for              D. from

22.  A. Instruments    B. facilities             C. equipment     D. tools

23.  A. investigated     B. surveyed      C. tested           D. experimented

24.  A. fashion              B. existence         C. possession      D. use

25.  A. protected         B. buried        C. hidden         D. covered

26.  A. possible      B. accurate              C. detailed        D. persuasive

27.  A. brings in     B. takes in       C. results in      D. lies in

28.  A. master       B. violinist        C. expert           D. user

29.  A. attention             B. application    C. invention             D. foundation

30.  A. Additionally          B. Luckily         C. Therefore     D. Still

Examination compositions, together with most business letters and government reports, are the main situations ____ formal language is used.

   A. in which    B. on which    C. of which    D. for which

The program is like a window on the world ____ you sit by it and fix your attention on what it shows.

    A. if     B. as     C. while     D. unless

$100 a month could hardly ____ the cost of his life in such a big city in this country.

    A. spend     B. take     C. cover     D. meet

—Good evening. I ____ to see Miss Jessic.

    —Oh! Good evening. I’m sorry, but she is not in.

    A. came     B. come     C. have come     D. had come