27. It is still unclear whom the queen will choose as her ______ to succeed the throne.
(A) crook
(B) duke
(C) heir
(D) vice
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統計: A(70), B(114), C(349), D(151), E(0) #2053378
統計: A(70), B(114), C(349), D(151), E(0) #2053378