12. What`s really needed, according to most researchers in this field, ________ a "killer" application particularly suited for the way DNA computing solves problems. A. being B. are C. is D. was 13. - What time do we have to be at the gate? - __________ passengers are already boarding. A. Hurriedly B. Soon C. Immediately D. Since 14. Microsoft's next major operating system, Windows Vista, looks ________from today's Windows. A. different B. differently C. difference D. differences 15. The flowers _________ sweet in the botanical garden attract the visitors to the beauty of nature. A. smell B. smelling C. smelt D. to be smelt 16. - I think I’ll give Bob a ring. - You _______. You haven’t been in touch with him for ages. A. will B. May C. have to D. should 17. -This store has such high prices. -I agree. Never again __________ here. A. I will shop B. I do shop C. will I shop D. shop I do 18. _______ no need to worry about his safety, because he is always careful. A. What’s B. It’s C. There’s D. Which’s |