11. If the government _____ stricter regulations on emissions, the air quality in major cities would improve dramatically.
(A) imposes
(B) imposed
(C) will impose
(D) would impose

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統計: A(2), B(2), C(0), D(0), E(0) #3955151

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#7443820
中譯:如果政府實施更嚴格的排放法規,...
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