18. The art gallery is only open on Saturdays and Sundays. _______, it is closed on weekdays.
(A) For one thing
(B) In other words
(C) Sooner or later
(D) To begin with
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統計: A(15), B(415), C(11), D(7), E(0) #2795825
統計: A(15), B(415), C(11), D(7), E(0) #2795825