A although
B despite
C otherwise
D if
A have not bitten
B do not bite
C will not be biting
D are not biting
A none of these
B none of which
C none of them
D none of whom
A That’s no approval.
B Yes, I’ve known him for years.
C No, the line is busy.
D It is much too high.
A I'm not invited.
B I have not been invited.
C I was not invited.
D I will not be invited.
A had better not
B had not better
C have better not
D had better not to
A white, pretty, silk
B pretty, white, silk
C pretty, silk, white
D silk, pretty, white
A takes off
B turn in
C goes off
D turns up
A effect to
B effect in
C affect on
D effect on
A where had I gone
B where I had gone
C where did I gone
D I had gone where
A No, I won’t I’m afraid
B Sorry, I don’t
C Don’t worry. Go ahead
D I’m afraid I can’t
A are
B was
C were
D have been
A for
B on
C with
D of
A Having quarreled
B Because having quarreled
C Because of she quarreled
D Had quarreled
A degrees
B grades
C colleges
D vacancies
A commit
B perform
C make
D do
A tight
B close
C cheap
D hard
A exhausts
B consumes
C spends
D reserves
A clear
B explicable
C ambiguous
D unintelligible
A importance
B economies
C educated
D the whole country
A dangerous times
B especially
C such
D decides
A Once
B overcome
C may well become
D strengthen
A that
B hardly
C ourselves
D and support
A All the
B enough good
C to pass
D final
A The production procession
B The equipment needed
C The high cost
D The role of the artist
A first frame
B middle frames
C last frame
D entire sequences of frames
A formulas
B objects
C numbers
D database
A add color to the images
B expose several frames at the same time
C store individual images
D create new frames
A drawing several versions
B enlarging one frame at a lime
C analyzing the sequence from different angles
D using computer calculations
A separates
B registers
C describes
D numbers
A before
B since
C after
D while
A They experiment with computer-generated line drawings.
B They hand-draw successive frames.
C They calculate high-resolutions images.
D They develop extensive mathematical formulas.
A possibility
B position
C time
D job
A Computers have reduced the costs of animation.
B In the future, traditional artists will no longer be needed.
C Artists are unable to produce drawings as high in quality as computer drawings.
D Animation involves a wide range of technical and artistic skills.
A desertification
B decreasing water supply
C factors limiting crop production
D developing efficient plants
A fertile
B parched
C barren
D marsh
A The plant’s shape
B The small root system
C The vast leaf size
D The high water system
A spongy
B shallow
C widespread
D comprehensive
A It helps the plant to avoid excessive moisture intake
B It helps the plant to attack aggressors.
C It releases gases against plant pests.
D It guards against bacteria.
A another chemical mechanism
B the epicuticular wax layer
C an impervious plant like cover
D the loss of internal moisture
A attack
B agitation
C conditions
D surroundings
A Bacteria
B Insects
C Gas
D Pests
A have not been developed yet
B have not succeeded
C have been determined to be impervious to organic and inorganic agents
D have the quality of causing bacteria
A inadequate water
B insufficient fertilize
C pest aggression
D proper storage
A unique
B vital
C novel
D exotic
A always
B sometimes
C hardly
D never
A takes after
B takes off
C takes on
D takes up
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