阿摩線上測驗
20. If it ______ tomorrow, the outdoor barbeque party will be called off.
(A) will snow
(B) could snow
(C) should snow
(D) has been snowing
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統計： A(56), B(43), C(81), D(49), E(0) #2062543
統計： A(56), B(43), C(81), D(49), E(0) #2062543
