The president acknowledged that he had somehow ________ his ability to communicate to the American people.
A. failed in
B. deviated from
C. written off
D. triumphed over
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He was so ______ that he ended up as a fresher in Qinghua university three years later.
A. tragic
B. diligent
C. robust
D. clear-cut
Only by keeping down costs will America ______ its competitive advantage over other countries.
A. uphold
B. inhibit
C. slack
D. maintain
People there are told it is their ________ duty to support the national economy by buying their own products.
A. robust
B. glamorous
C. patriotic
D. tragic
His success came from ________ rather than opportunity .
A. glamor
B. optimism
C. endeavor
D. abortion