B. Fill in the blanks: asking for, award, came up with, ceremony, conservation, pollution, proud, recycling, stray, took part in 1. Our class __________ a plan to clean the school yard. 2. Many students __________ the clean-up day. 3. The mayor gave the team an __________ for their project. 4. At the __________ the students got certificates. 5. We learnt about __________ and how to protect forests. 6. Too much __________ makes rivers dirty. 7. I felt very __________ of my classmates. 8. We collected paper for __________. 9. The club helps __________ animals. 10. They are __________ help from other schools.