42.This is an illness that can result in total blindness（ ）left untreated.

28.FC Barcelona,（ ）the most iconic club in world soccer, beat Manchester United 2-0 to claim the UEFA Champions League title.

27.Electronic cigarettes should be subject（ ）the same taxes and limitations on public use as traditional tobacco products.

26.Although Patterson acknowledges the disappointing season he had with the Vikings, he has no second（ ）about how he went about his business.

25.The company announced that it has achieved its mission to create a local food economy that is（ ）to any environment.

24.To illustrate the limits of First Amendment free speech, many have noted that Constitution does not give you the right to falsely（ ）“Fire!” in a crowded theater.

23.The subject of manners is complex. If it were not, there would not be so many （ ）feelings and so much misunderstanding in international communication.

22.After the war, he worked on an island in the Pacific, helping the natives and medical（ ）understand each other’s behavior and cultures.

21.A group（ ）casinos has urged officials not to grant a license to a facility in the city.

20.“Harry was compelled to resign and to come down to London, where he set up as an army coach.” The relative clause in the sentence serves to（ ）.

19.What is the function of the present progressive in “They are always calling me by the wrong name”?