Надо 1. раскройте скобки и поставьте глагол в нужную форму simple. 1) our students ( to specialize ) un many fiend of engineering. 2)at that time people ( to develop) useful tools and devices. 3)next year they (to study) new subjects . 4)ancient greeks ( to construct ) a lot of civilian structures . 5)this engineer ( to work ) in the field of mechanics .
