阿摩線上測驗
198. Nancy studied hard______ flunk calculus again.
(A) so as not to
(B) not so as to
(C) so as to
(D) as not to
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統計： A(450), B(43), C(26), D(25), E(0) #3656366
統計： A(450), B(43), C(26), D(25), E(0) #3656366
