17.
(A) would pile
(B) had piled
(C) was piling
(D) might have piled

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統計: A(23), B(217), C(37), D(23), E(0) #2379956

詳解 (共 1 筆)

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私人筆記 (共 1 筆)

私人筆記#6629017
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答案:(B) had piled:此句...
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