Question 16: New Zealand and Australia are both surrounded by the sea. A. Both New Zealand and Australia has sea around it. B. There is no sea around New Zealand and Australia. C. New Zealand and Australia don’t have sea. D. We can’t go swimming in New Zealand and Australia. Question 17: Australians use English as their mother tongue so they are native speakers. A. Australians are native speaker although they use English as their mother tongue. B. Australians are native speaker because they use English as their mother tongue. C. Australians are native speaker though they use English as their mother tongue. D. Australians are native speaker owing to they use English as their mother tongue.