______ when the earthquake ______ last week? A. What did you do / would start B. What had you done / has started C. What have you done / starts D. What were you doing / started

______ when the earthquake ______ last week?

A. What did you do / would start   
B. What had you done / has started
C. What have you done / starts      
D. What were you doing / started

Trả lời

Chọn đáp án D

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