题目内容

He is sitting _______ the room that is _________ the old tree.


  1. A.
    in the front of/in the front of
  2. B.
    in front of/in the front of
  3. C.
    in front of/in front of
  4. D.
    in the front of/in front of
D
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We go ______ duty at 8 a.m.


  1. A.
    on
  2. B.
    in
  3. C.
    at
  4. D.
    for

No matter how hard it is, just go on and never ____.


  1. A.
    give up
  2. B.
    give away
  3. C.
    give in
  4. D.
    give off

__________! There comes a train!


  1. A.
    Look out
  2. B.
    Look around
  3. C.
    Look forward
  4. D.
    Look on

________last Saturday, we had two football matches with Class Two.


  1. A.
    For
  2. B.
    /
  3. C.
    By
  4. D.
    During

We will have a football match _____ this Saturday afternoon


  1. A.
    on
  2. B.
    /
  3. C.
    in
  4. D.
    for

—Did Sam go to the cinema yesterday？

—Yes, we all went there ____ him.


  1. A.
    except for
  2. B.
    beside
  3. C.
    besides
  4. D.
    except

When the teacher said there is going to be a long holiday the whole class is _____ great excitement.


  1. A.
    in
  2. B.
    with
  3. C.
    for   
  4. D.
    on
通常—种酶蛋白必须与某一特定的辅酶结合，才能成为有活性的全酶；反之，一种辅酶常可与多种不同的酶蛋白结合而成为具有专一性的酶。

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