Определите видовременную форму и залог сказуемого. 1. The construction of the oil center began after the plan had been

1. The construction of the oil center began after the plan had been adopted. Began - Past Simple Active Voice. Had been adopted - Past Perfect Passive Voice. Строительство нефтяного центра началось после принятия плана. 2. These text-books in chemistry were printed in our print shop. Were printed - Past Simple Passive Voice. Эти учебники по химии были напечатаны в нашей типографии. 3. A chain of thermal and atomic plants was built in 1970-s in our country. Was built - Past Simple Passive Voice. Цепь тепловых и атомных станций была построена в 1970-х годах в нашей стране.