2. раскройте скобки, употребляя глаголы в active или passive voice. переведите предложения. 1. they (wrote/were written) many articles for the magazine last year. 2. all the graduates (defend/ are defended) their candidate theses before the examination board. 3. many compulsory subjects ( will be taken/will take) by the first-year students. 4. these data (are refered to/ refer to) often. 5.the water (has boiled/has been boiled) already.