21.This is a purely _______ problem, not a political one.
A. additional B.advantage C.announce D.academic
22.The _______ TOEFL score for entering this program is 600.
A. less B.sandy C.stain D.minimum
23.The best example of a paradox is the proverb ‘More _______, less speed’.
A. haste B.range C.possession D.purse
24.This company provides a very good _______ service for its products.
A. maintenance B.merit C.philosophy D.pigeon
25.There is more _______ in meat than in vegetables.
A. dam B.protein C.cash D.bloody
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