1 . People do not use this road very often

=>this road isn't used very often

2 . We will grow a lot of trees in the parks

=>a lot of trees will be grown in the parks by us

3 . They are paining the living-room light blue

=>the living-room light blue is being painted

4 . People have developed many different paper products

=>many different paper products have been developed

5 . He asked us many difficult questions

=>we were asked many difficult questions by him

6 . They must widen the road soon

=>the road must be widened soon

7 . She advised me to reuse milk bottles

=>I was advised to reuse milk bottles by her

8 . My sister cleans these rooms every day

=>these rooms are cleaned by my sister every day

9 . Wastes from chemical factories have caused a lot of pollution

=>a lot of pollution has been caused by wastes from chemical factories

10.When does he usually do his homework ?

=>When is his homework usually done by him?

• This road isn't used very often by people.
• A lot of trees will be grown in the parks.
• The living-room is being painted light blue by them.
• Many different paper products have been developed by people.
• Many difficult questions were asked of us by him.
• The road must be widened soon.
• I was advised by her to reuse milk bottles.
• The room is cleaned every day by my sister.
• A lot of pollution has been caused by waste from chemical factories.
• When is his homework usually done?