Chuyển thì quá khứ đơn / hiện tại hoàn thành sang hiện tại hoàn thành / quá khứ đơn
1. She left university 2 years ago
=> It is ____________________
2. My mother was the most warm-hearted person I’ve ever known.
=> I have ____________________
3. I haven’t been able to see them for over a year.
=> It is ____________________
4. I have never been to the ballet before.
=> It is ____________________
5. John and Mary moved to Edinburgh twenty years ago.
=> It is ____________________
6. The police started looking for him two months ago.
=> For two months now the ____________________
7. Mary rang hours and hours ago.
=> It it hours ____________________
8. It is ages since Alan visited his parents.
=> Alan ____________________
9. John has not had his hair cut for over six months.
=> It is ____________________
10. I haven’t been to HCM city for 2 years.
=> The last time ____________________