When the Minister was asked about the strike, he declined to comment.
When the Minister was asked about the strike, he declined to comment.
=> On _________________________________________________________.
Đáp án: On being asked about the strike, the Minister declined to comment.
Giải thích: Cấu trúc câu bị động: On being + Vp2 + O, S + V
Dịch: Khi được hỏi về cuộc đình công, Bộ trưởng từ chối bình luận.