When I heard the telephone ring, I answered it immediately.

79/80

Mark the letter A, B, C or D on your answer sheet to choose the sentence which is closest in meaning to the one in bold.
When I heard the telephone ring, I answered it immediately.

On hear the phone rang, I answered it immediately.

On hear the phone ring, I answered it immediately.

On hearing the phone ring, I answered it immediately.

On hearing rang, I answered the phone immediately.

Giải thích

Câu gốc: When I heard the telephone ring, I answered it immediately. Khi tôi nghe thấy chuông điện thoại, tôi đã trả lời nó ngay lập tức.

B và A loại vì sau giới từ “On + V-ing”. Đáp án là C. Cấu trúc hear something/someone + V: nghe thấy ai/ cái gì