問題詳情

19. Leo:Look!          your cat dancing on the piano?
Roy: Wow! I can't believe it. It never           that before.
(A) Did; did
(B) Do; did
(C) Does; does
(D) Is; did

參考答案

答案:D
難度:計算中-1
書單:沒有書單,新增

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