question 30: People recycle glass bottle to reduce waste Glass bottles... question 31:The Youth Union will organise a campaign to protect the environment A campaign... question 32: Working with homel...

30: Glass bottles are recycled by people to reduce waste. 31: A campaign to protect the environment will be organised by the Youth Union. 32: It is very interesting to work with homeless children. 33: Her parents let her watch TV on Sundays. 34: The band members worked hard, so they successfully recorded their first album. 35: You can attend a singing class, or you can take piano lessons after school.