The key answer of exercise 4

a)

1. who
2. that
3. which
4. that
5. where

b)

• Huang Qingjun is a photographer who travels around China and takes photos of people that are standing outside their homes.
• The photos show the huge changes which are taking place in China.
• The photo of elderly farmers who are standing outside their house ...
• Some people feel it is strange to take all the things which are in their house outside.
• It is easier to take the photos in places where people don’t have many possessions.
• He visited one location where a couple had to move.
• You can see the Chinese word which means ‘destroy'.