Ex 4:
1. I have worked at this hotel for six months.
2. Susan went to Italy three weeks ago.
3. I met her while I was staying in England last summer.
4. It's been over a year since we last went to the cinema.
5. Sam has never played tennis before yesterday.
6. When did they last go to Nairobi?
7. My daughter has been studying English since she was young.
8. She hasn't stopped working on her homework.
9. Tom hasn't been back to his hometown for five years.
10. When we were having dinner, there was a knock at the door.
6. Have you ever traveled to a foreign country and experienced its different cultures?
7. She hasn't achieved her goals despite her efforts.
8. Have you ever stepped out of your comfort zone and tried other international cuisine?