12. Realizing that he had stepped on my foot, the man ________ to me politely.
(A) proposed
(B) apologized
(C) introduced
(D) complained
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統計: A(108), B(2939), C(130), D(73), E(0) #642093
統計: A(108), B(2939), C(130), D(73), E(0) #642093