6. The only way to curb the ________ mob is to use tear gas; otherwise, they stay there day
and night.
(A) complacent
(B) pensive
(C) unruly
(D) lucrative
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統計: A(7), B(15), C(75), D(11), E(0) #2008166
統計: A(7), B(15), C(75), D(11), E(0) #2008166