My grandfather started collecting stamps when he was 65.

A. My grandfather took up collecting stamps when he was 65.
B. Collecting stamps was my grandfather's hobby when he was 65.
C. At the age of 65, my grandfather was collecting stamps.
D. My grandfather hasn't collected stamps until he was 65.

Xem đáp án và giải thích

Đáp án đúng là: A. My grandfather took up collecting stamps when he was 65.

Giải thích:

Câu gốc 'My grandfather started collecting stamps when he was 65' có nghĩa là 'Ông tôi bắt đầu sưu tập tem khi ông 65 tuổi'. Lựa chọn A 'My grandfather took up collecting stamps when he was 65' sử dụng cụm động từ 'took up' có nghĩa là 'bắt đầu làm một việc gì đó', diễn đạt ý tương đương.