Question 50: I prepared the lessons for the test, then my mother came in.

     A. After I have prepared the lessons for the test, my mother came in

     B. When my mother came in, I prepared my lessons for the test

     C. My mother came in by the time I had prepared my lessons for the test

     D. Before my mother came in, I had prepared my lessons for the test.

Đáp án

Giải chi tiết đề thi thử Tiếng anh THPTQG - Trường THPT Minh Hà - Quảng Ninh - Lần 1