13. Mona ______ her second liter of wine when Mrs. Lin arrived at home.
(A)began
(B)was beginning
(C)has begun
(D)will begin

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統計： A(9), B(48), C(21), D(0), E(0) #2059632

詳解 (共 1 筆)

#3682653
Mona was beginning h...
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