My grandfather started collecting stamps when he was 65.
Giải chi tiết:
A
My grandfather started collecting stamps when he was 65.
Ông tôi bắt đầu sưu tập tem khi ông 65 tuổi
= A. My grandfather took up stamps collecting when he was 65.
Take up = start doing st: bắt đầu làm một việc gì