4. A(n) _________ is a person to whom secrets can be told or with whom private matters and problems are discussed.
(A) acquaintance
(B) foe
(C) adversary
(D) confidant
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統計: A(99), B(44), C(17), D(246), E(0) #1801820
統計: A(99), B(44), C(17), D(246), E(0) #1801820