20. I was about to pay for the pomegranate when ______ that I had left my wallet at home.
(A) it suddenly dawned on me
(B) suddenly dawned on me
(C) it suddenly dawned on
(D) it suddenly dawned me
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統計: A(362), B(13), C(35), D(48), E(0) #2752390
統計: A(362), B(13), C(35), D(48), E(0) #2752390