Choose the word or phrase which best completes each sentence. 6. We were told to put it where it was usually ................... A. belonged B. fit C. had D. stored 7. It wasn’t the first time they had been ................... how it worked. A. taught B. reported C. explained D. described 8. DNA tests ................... accepted in court cases. A. are known B. were used C. have been D. will have 9. Something ................... happened or they would be here by now. A. must B. must be C. must have D. must have been 10. There ................... to be serious flaws in the design. A. claimed B. reported C. were said D. were told