1. Two department stores have been built this year.
2. Tom has been orperated sine 10 o' clock by the doctor.
3. A new style of jeans has just been introduced in the USA.
4. English has been learned for 5 years by me.
5. This letter has already been sent to her by him.
6. This room hasn't been used for ages/ for a long time.
7. Has English been learned for 10 years by you?