Write the correct form of the words in brackets in the blanks to complete the sentences

Part 8: Write the correct form of the words in brackets in the blanks to complete the sentences.

1. Air _________ is the worst problem in big cities. (pollute)

2. The fire ______________ their building completely last night. (destroy)

3. We received a from that customer yesterday. (complain)

4. I bought these things at a ____________ store near my house. (convenient)

5. Fog and rain are common in the __________ regions near the border. (mountain)

6. To avoid using single-use products like plastic bags is a way to environment. (protect)

7. You should make a list of all things you want to buy when you go _________. (shop)

8. They didn't receive any ­____________ (warn) about the storm to move to a safer.