阿摩線上測驗
14 Mr. Johnson always puts on a very_____ face whenever his students fail to answer the questions correctly.
(A) aboriginal
(B) barren
(C) solemn
(D) eloquent
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統計： A(11), B(18), C(58), D(11), E(0) #799984
統計： A(11), B(18), C(58), D(11), E(0) #799984
