Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions
When I picked up my book I found that the cover had been torn
A. Picked up, I saw that the cover of the book was torn
B. Picking up my book, the cover had been torn
C. The cover had been torn when my book picked up
D. On picking up the book, I saw that the cover had been torn
Đáp án là D. On + V-ing = When + S + V: Khi