9. It was not very long ________ scientists applied the technique to other species. A. while B. then C. after D. before ...

4. News reports say peace talks between the two countries ____ with no agreement reached. A. have broken out B. have broken in C. have broken down D. have broken up ...

22. Next month my sister _____ 12 years old. A. is to be B. will be C. was going to be D. shall ...

17. The mountain areas ____ various trees a few years ago and now the mountains are standing straight with a few trees here and there. A. abused with B. abundance in C. abounded with D. absorbed in ...

12. We hope the measures to control water pollution, _____ taken by the government, will succeed. A. that B. because C. as D. since ...

5. I think the vase is ________ 200 dollars. A. worthy B. worth being C. worth D. worth of ...

25. I shall show you my photographs as soon as they _________ ready. A. will be B. will have been C. are D. have been ...

14. I invited Tom and Ann to dinner, but ____ of them came. A. both B. neither C. either D. none ...

8. In Britain people ____ four million tons of potatoes every year. A. consume B. swallow C. dispose D. use ...

3. No sooner _______ than the jeep started off. A. has his luggage been loaded B. he loaded his luggage C. was his luggage loaded D. his luggage was being loaded ...