27. The United States of America _______one of the most largest countries in the world.

　　 A. is　 B. are　 C. was　 D. were

26. The subject of physics _______ always interested him .

　　 A. has　 B. have　 C. is　 D are

25. The subject of physics _______ always interested him .

　　 A. has　　 B. have　 C. is　 D. are　

24. He is the only one of the students who ______ elected.

　　 A. are　 B. have　 C. has　 D. is

23. Jane is one of the best students in her class who ______ by their teacher.

　　 A. are praised　 B.is praised　 C. praised　 D. praising　

22. Those who ______ in _____ compositions , please hand them in this afternoon.

　　 A. hasn`t handed ; his　 B. haven`t handed ; his　 C. has handed ; their　 D. have handed ; his

21. The police _______ the murderer everywhere when he suddenly appeared in a theatre.

　　 A. is searching for　 B. were searching for　 C. are searching for　 D. were searching

20. The Chinese people ______ hard-working and brave .

　　 A are　 B.is　 C. has been　 D . are being

19. The whole class ______ the teacher attentively.

　　 A. are listening to　 B.is listening to　 C. are listening　 D. is listening

18. The number of students of this school ______ large.

　　 A. are　 B. was　 C. is　 D. be