Ответ:
1. In a few years, the population of older people are get much larger. will
2. Arlene was walking down the street when someone asks her for directions.
asked
3. Stacy doesn't want to have children now so she's still too young. because
4. Erica has been ride her bike recently to work. riding
5. My friend has a car who runs on alternative fuel. that
6. That was the most disgusted food I've ever eaten. disgusting
7. Mike asked me taking his elderly mother to the doctor. elder
Надеюсь тебе поможет :-]