40. ____ this is your first visit to my hometown, I will show you around and treat you to dinner.
(A) Although
(B) Until
(C) Since
(D) When
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統計: A(12), B(0), C(39), D(4), E(0) #3492323
統計: A(12), B(0), C(39), D(4), E(0) #3492323