6.During the trip, whenever Sarah does not understand what the tour guide says, she always ________ her hand and asks questions.
(A) arises
(B) rises
(C) arouses
(D) raises
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統計: A(15), B(18), C(0), D(75), E(0) #664921
統計: A(15), B(18), C(0), D(75), E(0) #664921