12. A: I’ve got an upset stomach, and it won’t go away.
B: Have you tried _____ some gastric acid reducer?
(A) taken
(B) take
(C) took
(D) taking
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統計: A(99), B(54), C(26), D(604), E(0) #2027052
統計: A(99), B(54), C(26), D(604), E(0) #2027052