Variant 1 You could have come first and won the race if you … faster

27. What is the function of air-conditioning?

A) It only cools the indoor air. C) It sometimes cleans the air.

B) It controls the indoor environment. D) It changes climatic condition.

28. Why is air-conditioning beneficial for office workers?

A) They are sleepy and exhausted. B) They feel active and not so tired.

C) They make more mistakes. D) They enjoy fresh air.

29. The word EMPLOYEE in the text means …

A) a person who works for somebody. B) a person who gives lectures.

C) a person that employs others. D) the owner of the company.