Из данных предложений выпишите те, сказуемое которых стоит в страдательном залоге (Passive Voice); подчеркните в них

Следующие предложения стоят в страдательном залоге:1. Great success was achieved by economical statistics last year. - Past Simple Passive2. Mathematical methods are applied by people in many branches of modern science. - Present Simple Passive3. The cost of production will be calculated by economists. - Future Simple Passive