問題詳情

12. Jack was a doctor before he _____ a writer.
(A) become
(B) became
(C) was becoming
(D) becomes

參考答案

答案:B
難度:計算中-1
書單:沒有書單,新增

用户評論

Chen Chien】評論

became.....觀看完整全文,請先...

廖渝】評論

before 要時態平衡★★★★★ ...