I picked up my book. I found that the cover had been torn. A. When picking up

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Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

I picked up my book. I found that the cover had been torn.

When picking up my book, the cover had been torn.

On picking up my book, I saw that the cover had been torn.

Picked up, the book was torn.

The cover had been torn when my book picked up.

Giải thích

Đáp án đúng: B

Giải thích: on + Ving = when S + V.

Dịch: Khi cầm cuốn sách, tôi thấy bìa đã bị rách.