Запишите предложения и подчеркните в них модальный глагол или его эквивалент, переведите 1. You should try to find out as many facts as possible about this expedition to the Antarctic. 2. The team of experts is to analyze the present situation connected with our city's ecological problems. 3. The young engineer was allowed to apply the mobile equipment in his field experiments. 4. This production process had to be further improved by new technical means.