阿摩線上測驗
15. Preparing for tests early ______ a good study habit.
(A) are
(B) is
(C) its
(D) has
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統計： A(54), B(483), C(29), D(37), E(0) #3384244
統計： A(54), B(483), C(29), D(37), E(0) #3384244
