During his race to the highest post in the US, Barack Obama called for ________ United States of America, rather than ________ white America or a black America．


  1. A.
    a;a
  2. B.
    /;the
  3. C.
    the;a
  4. D.
    the;/

Whatever the cause of the heat may be, we do know that the earth gets hotter ________ down we dig．


  1. A.
    further
  2. B.
    the farther
  3. C.
    the farthest
  4. D.
    the furthest

The captain called ________ his men never to give ________ before difficulties in the storm.


  1. A.
    on; in
  2. B.
    for; up
  3. C.
    at; away
  4. D.
    out; off

He was in a coma for days. But now he's fully ________ again.


  1. A.
    knowing
  2. B.
    awake
  3. C.
    aware
  4. D.
    conscious

Pine trees are ________ throughout the world．


  1. A.
    common
  2. B.
    ordinary
  3. C.
    general
  4. D.
    usual

You need warm clothes to ________ you against the cold．


  1. A.
    keep
  2. B.
    protect
  3. C.
    defend
  4. D.
    stop

Advanced computer technology has _____ an answer to accurate weather forecasting.


  1. A.
    set up
  2. B.
    come up with
  3. C.
    filled in
  4. D.
    put up with

I would never speak to someone like that _____ they said something unpleasant to me.


  1. A.
    even if
  2. B.
    so that
  3. C.
    as if
  4. D.
    ever since

My friend was so angry at the moment that no one could _____ him down.


  1. A.
    silent
  2. B.
    calm
  3. C.
    quiet
  4. D.
    still

There was a lot of fun at yesterday's party. You_______.


  1. A.
    must have
  2. B.
    should
  3. C.
    need have
  4. D.
    ought to have
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