阿摩線上測驗
198.Nancy studied hard___ flunk calculus again.
(A)so as to
(B)as not to
(C)so as not to
(D)not so as to
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統計： A(25), B(46), C(542), D(43), E(0) #2773159
統計： A(25), B(46), C(542), D(43), E(0) #2773159
