5. The teacher encouraged the students to _______ their ideas before presenting them to the class.
(A) neglect
(B) refine
(C) impose
(D) discard
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統計: A(1), B(5), C(2), D(1), E(0) #3412551
統計: A(1), B(5), C(2), D(1), E(0) #3412551