問題詳情

27. While _____ in the sea, I was attacked by a jellyfish.
(A) swim
(B) to swim
(C) swimming
(D) swam

參考答案

答案:C[無官方正解]
難度:非常簡單0.9
統計:A(0),B(0),C(9),D(1),E(0)