What ________ when the accident ________? A. have you been doing / occurs B. are you doing / will occur C. will you be doing / has occurred D. were you doing / occurred

What ________ when the accident ________?

A. have you been doing / occurs           
B. are you doing / will occur
C. will you be doing / has occurred      
D. were you doing / occurred

Trả lời

Chọn đáp án D

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