8. Living in the Central Australian desert has its problems, ______ obtaining watering is not the least.
A. of which
B. for what
C. as
D. whose
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9. The heart is ______ intelligent than the stomach, for they are both controlled by the brain.
A. not so
B. not much
C. much more
D. no more
10. The millions of calculations involved, had they been done by hand, ______ all practical value by the time they were finished.
A. could lose
B. would have lost
C. might lose
D. ought to have lost
Please quote your lowest price CIF Seattle ________ each of the following items.
A. for
B. to
C. about
D. against
Our prices are highly _______ when you consider quality.
A. competition
B. competitive
C. compete
D. competitor