16. _______ if she could attend the lunch meeting, the CEO nodded her head and left the conference room.
(A) Ask
(B) Asking
(C) Asked
(D) Having asked

12. The paper presents findings that ____ the intuitive belief of many language learners. More studies should be undertaken to clarify the discrepancy. (A) strike off (B) divide into (C) gear up for (D) run counter to

13. Thousands of homeless families do not have enough money to buy food, not to mention _______ in a hotel.(A) stay (B) staying (C) have stayed (D) to stay

14. The kitchen appliances need _______. Can you help me out?(A) clean (B) cleaning (C) to clean (D) being cleaned

15. It was _______ cold recently that I caught a bad cold which lasted for two weeks.(A) so (B) too (C) very (D) such

17. If Emily _______ my advice, she might have avoided making the same mistakes at work.(A) takes (B) took (C) has taken (D) had taken

18. The editor demanded that everyone listed as an author _______ the journal's criteria for authorship.(A) met (B) meets (C) meet (D) meeting

19. I _______ in Taipei for five years by the end of this month.(A) am living (B) have lived (C) will live (D) will have lived

20. Elvis Presley is a famous American singer and actor, _______ is known to everyone.(A) as (B) it (C) so (D) what

21. Many international students like to study at National Taiwan University, _______ the faculty and facilities are top-notch.(A) that (B) which (C) whose (D) of which

22. Which of the following sentences is grammatically CORRECT?(A) Vegetarian meals have few calories, they are also healthy.(B) The flavor of the Dutch chocolate ice cream is better than the white chocolate.(C) While driving into town, it suddenly occurred to Mark that he had forgotten his suitcase.(D) Dr. Grabe's article, which I think everyone should read, is optimistic about the future use of alternative energy.