問題詳情

13.Steven: What was Grandpa doing then?
Melody: He was _______ a letter to Justin, his oldfriend.
(A) types
(B) typing
(C) to type
(D) type

參考答案

答案:B
難度:非常簡單0.944
書單:沒有書單,新增

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】評論

type a letter 是長時間動作★★★★★★★...