問題詳情

( )I ________. Suddenly, a group of boys ran toward him.
(A)kept walk
(B)kept on walking
(C)went on to walk
(D)kept on to walk

參考答案

答案:B[無官方正解]
難度:非常困難0
統計:A(0),B(6),C(0),D(2),E(0)

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