38. The road is wet this morning, so it ________ last night.
(A)has rained
(B)must rain
(C)had rained
(D)must have rained

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統計: A(6), B(8), C(15), D(71), E(0) #758665

詳解 (共 2 筆)

#2408266
1.對現在狀況的推論must + 原行動...
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#3845064
must have p.p. 則是 ”(...
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