613. Sean is only a nodding ______; I have only seen him several times in some social gatherings.
(A) circumstance
(B) acquaintance
(C) companionship
(D) tenderness
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統計: A(4), B(29), C(12), D(5), E(0) #1592823
統計: A(4), B(29), C(12), D(5), E(0) #1592823