1. The telephone (was invented / has been invented) in 1876. 2. This swimming pool (is used / is being used) by over a thousand people each weck. 3. Then I realized that none of the guests (had been sent /had sent) an invitation. 4. New software (was installed / has been installed) on my PC yes- terday. Why (has he given / has he been given) a promotion? 6. Another date for the meeting (will be ver #will being set) next week. 7. She (was elected/elected) head of the department two months ago. At present our company (is being reorganized / is reorganizing). 8. I hope the documents (will be received /will have been received): by tomorrow afternoon, 10. How can the problem (he solved/ his solved?