The customers ______ the company before our boss ______ A. was leaving / arrive B. already left / have arrived C. has been left / were arriving D. had left / arrived

The customers ______ the company before our boss ______

A. was leaving / arrive   
B. already left / have arrived
C. has been left / were arriving  
D. had left / arrived

Trả lời

Chọn đáp án D

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