Ex.1. complete the sentences using the correct passive (perfect) form of the verbs in brackets. 1. a lot of new companies (open) in our city this year. 2. we didn’t know that he (not invite). 3. the construction of our new office (finish) before winter comes. 4. he went to london last year and he (not hear) of ever since. 5. i wondered why her child (not teach) any foreign language. 6. the instructions just (give). 7. he didn’t follow the advice he (give). 8. i realized that the letter (lose). 9. the answers to all business letters (write) long before the end of the working day. 10. this historical fact (know) for many years. 11. the work (do) by the time he comes back to the office. 12. i wondered whether the product already (withdraw) from the market.