Where is Jimmy?   - He is            work. He is busy                 his monthly report.  

Câu hỏi :

Where is Jimmy?   - He is            work. He is busy                 his monthly report.  

A in/ about    

B to/ through  

C at/with    

D on/ for

* Đáp án

C

* Hướng dẫn giải

Phương pháp giải:

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