問題詳情

(  )20.The frogs kept ________ all night. It was so noisy that I could not sleep.
(A) croaking 
(B) barking 
(C) flying 
(D) crying

參考答案

答案:A
難度:適中0.552381
統計:A(58),B(27),C(4),D(7),E(0)

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