19、 19
(A) couldn't be clumsier
(B) couldn't be more nimble
(C) could be more agile
(D) could be more sluggish ..
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統計: A(21), B(6), C(3), D(13), E(0) #1293304
統計: A(21), B(6), C(3), D(13), E(0) #1293304