14.
(A) timely
(B) regular
(C) self-concerned
(D) orderly

10. When Susan finally got to the party, most of her colleagues _____ already.(A) left (B) have left (C) had left (D) were left

11. (A) professional (B) interior (C) environmental (D) household

12. (A) health (B) wealth (C) work (D) value

13. (A) calling (B) making (C) limiting (D) counting

15. (A) never (B) rather (C) hardly (D) even

16. Which of the following titles best suits this passage?(A) Understanding More about the Lost Cities(B) Why Some Cities Lost Their Residents(C) How to Build Safer Homes in Desert(D) Why Some Cities Failed to Last Longer

17. Which of the following statements might explain why the Anasazi built homes along the river?(A) The Anasazi used the river and boats as their transportation means.(B) The Anasazi liked to find fish in the river as a food source.(C) The soil near the river makes a good choice for building homes.(D) Water is an important resource for those living in the desert.

18. What made the city of Machu Picchu become one of the most powerful cities in South America?(A) This city was founded by powerful European explorers.(B) This city was home to the Incan emperor.(C) This city was the capital of the Incan empire.(D) Many tourists visited the city to climb the steps.

19. According to the passage, which factor might have contributed to the fall of Pompeii?(A) A war destroyed the city.(B) Its people moved to other places.(C) A natural disaster buried the city.(D) Famine and drought brought down the city.

20. Which reason was given by the author for us to know more about these lost cities?(A) Knowing how these cities perished can help us build more cities more quickly.(B) Understanding the development of the lost cities can help us preserve our cities today.(C) Knowing the history of these lost cities can help us promote tourism.(D) Understanding the reasons behind the losses of these cities helps us protect our environment.