Based on 4c, ex.1
Fill in the gaps with the words from below.

• pollution
• stray
• ceremony
• members
• attend
• mayor
• research

1. Air
   [ ] is a big problem in my area.
2. There are a lot of
   [ ] animals in Athens.
3. The Oscars is the most popular film award
   [ ] in the world.
4. Our Golf Club has 300
   [ ].
5. Did you
   [ ] the art class this morning?
6. Who's the
   [ ] in your town?
7. Bob is doing some
   [ ] on the Amazon River.

Sources:

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