19. When I arrived at the party, Sally, the hostess, looked at me _______ and said, “You look _______ today!”
(A) happy…beautiful
(B) happily…beautiful
(C) happily…beautifully
(D) happy…beautifully

15. Our tour guide reminded us that to avoid the rush-hour traffic, we would _______ for the castle at dawn. (A) come off (B) put off (C) get off (D) set off

16. We may run out of energy resources soon _______ we make an effort to conserve them. (A) if (B) since (C) whether (D) unless

17. No magician so far could have performed the same trick ______ there is a complete mystery. (A) what (B) which (C) with that (D) behind which

18. With her hair _______ in the wind, Jessica rode her bike along the riverbank, singing her favorite song. (A) blows (B) blew (C) blown (D) blowing

20. The parents only _______ their children _______ computers on the weekends. (A) let … to play (B) make … playing (C) allow … to play (D) have…play

21. It’s time _______ the father _______ the bride down the aisle. (A) of…to walk (B) that…walking (C) for…to walk (D) to… to walking

22. After dinner, Sandra asked her date how much _______ in order that she could pay him back. (A) it cost him (B) he owed her (C) did he spend on it (D) should she pay

23. _______ there is another planet for creatures to live on _______ a question. (A) If… remaining (B) Whether… remaining (C) If… remains (D) Whether… remains

24. Many precious animals, once they are gone, won’t be found anywhere in the wild, _______ be remembered by our next generation since the kids can’t find them in the zoo. (A) nor they will (B) nor will they (C) neither will they (D) they also won’t

25. Choose the CORRECT sentence. (A) You should learn the lesson and avoid to make the same mistakes so that you can improve quickly. (B) David may often be the first one to leave the office, but he works as hardly as everyone does. (C) You should have checked your answers as carefully as she before you turned in the final test paper. (D) As a good student, we should have all the homework to be done and preparations ready for the next day.