What are the missing letters? Complete the sentences using the pictures to help you.

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. Interacting with a c can be annoying as often it doesn't understand your questions.
2. The football match attracted a large number of TV vi.
3. In the last 50 years, the number of plant and animal species has decreased by more than a half, and more will become e.
4. Fa re technology can quickly identify customers and improve banking security.