30. I should not have laughed if I _____ you were serious.
(A) thought
(B) would think
(C) had thought
(D) have thought

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統計： A(0), B(0), C(1), D(0), E(0) #495094

詳解 (共 1 筆)

#2635038
C
(共 3 字，隱藏中）
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