25.
(B)ill: Have you ever fired a gun? Jack: What did you ask me? Bill: I asked you whether_a gun before.
(A) have you fired B you have fired
(C) you had fired
(D) had you fired
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統計: A(8), B(9), C(12), D(6), E(0) #591972
統計: A(8), B(9), C(12), D(6), E(0) #591972