Heisworkinginafactory.It
- 習題庫
- 關注:3.2W次
問題詳情:
He is working in a ________ a half year since he ________ a college student.
A.is;was B.has been;become C.is;became D.has been;became
【回答】
A
知識點:固定句型
題型:選擇題
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