1 Fill in the gaps with words from below. • research • members • take part • environment • pollution • ceremony • stray 1 Industrial development causes harm to the ... 2 Our students regularly in tidying the neighbourhood 3 Bob is doing some ... on the Amazon River. 4 Our Golf Club has 300 ... 5 Air ... is a big problem in my area. 6 There are a lot of ... animals in this town. 7 The Oscars is the most popular film award ... in the world.