1,she hasn't used this bicycle for a long time

→this bicycle hasn't been used by her for a long time

2,I saw a strange man in my garden yesterday

→a strange man was seen in my garden by me yesterday

3,They clean the floor every morning

→the floor is cleaned every morning

4,They will solve the problem soon

→the problem will be solved soon

5,They break the glass into small pieces

→the glass is broken into small pieces

6,They made these cars in the USA

→these cars were made in the USA

7,People have used the Internet all over the world

→the Internet have been used all over the world

8,We planted many trees in the school garden

→many trees were planted in the school garden by us