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:
When I heard the phone ring, I answered it immediately.
A: On hear the phone rang, I answered it immediately.
B: On hear the phone ring, I answered it immediately.
C: On hearing the phone ring, I answered it immediately.
D: On hearing rang, I answered the phone immediately.
Đáp án C
Câu này dịch là: Khi tôi nghe thấy điện thoại reo, tôi đã trả lời ngay lập tức. Cấu trúc : When + S + V = On Ving …(2 mệnh đề cùng chủ ngữ).