1. Everyone has the opportunity to do work voluntarily.
2. Tomorrow we will go on an expedition.
3. We were asked to write a plan for the area.
4. I like to spend time with friends.
5. Engage in house activities.
6. Everyone can learn new skills.
For используются что бы подчеркнуть в течении какого времени происходит действие:
For example
I have lived here for 3 years - я живу здесь в течении 3 лет
Since используются что бы подчеркнуть с какого времени происходит действие:
For example
I have been styding French since I was 14 - я учу французский с 14 лет
1. were seen 2. have already been watered 3. is being painted 4. had been already collected 5. could not be read