阿摩線上測驗
21. If she _____ more carefully, she wouldn’t have made such a mistake.
(A) listens
(B) listened
(C) has listened
(D) had listened
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統計： A(9), B(33), C(24), D(110), E(0) #3430657
統計： A(9), B(33), C(24), D(110), E(0) #3430657
