15. Preparing for tests early ________ a good study habit.
(A) is
(B) has
(C) are
(D) its

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統計: A(2), B(0), C(0), D(0), E(0) #4068400

詳解 (共 1 筆)

#7636893
  答案是 (A) is。 句意:提早準...
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