阿摩線上測驗
20. A __________ person would have known the knowledge well and be able to comprehend the information to a novice person.
(A) learn
(B) learned
(C) learner
(D) learning
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統計： A(0), B(1), C(0), D(1), E(0) #3554098
統計： A(0), B(1), C(0), D(1), E(0) #3554098
