問題詳情

After a long day of teaching English to high school students who are not interested in the subject at all, my energy ____.
(A)flapped
(B) flopped
(C) flared
(D) flagged

參考答案

答案:D
難度:困難0.325843
統計:A(33),B(17),C(4),D(29),E(0)

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