5. Different conservation efforts have been made in order to save B. endanger A. danger 6. If you enjoy reading stories about love affairs, a B. thriller Peter gets here, we will A. romantic book 7. A. Since 8. Mrs. Pike A. will open B. As soon as species. D. dangerous is the right book for you. C. endangered C. science fiction D. comic book congratulate him. C. After D. No sooner C. has opened D. had opened C. biological D. biologist the door before the customers arrived. B. opens 9. A scientist who studies living things is a A. biology B. biologically 10. A: I saw Grace this morning at the bank. B: It a. can't be Grace. She has been to Paris on her honeymoon. b. must be B. less 11. The more he tried to help her, A. more c. can't have been she seemed to like it. d. must have been C. the less D. the most 12. The police have A. appealed to anyone with information to come forward and talk to them. B. supported C. contributed D. appalled mat an old school friend