Подчеркните participle ii; определите его функцию в предложении 1. they have considerably improved the engine.. 2. unless (если не …) tested the machine must not be put into operation.3. the natural toronto park (710-acre) was opened in 1974 by the municipality of toronto zoological society to replace the former overcrowed and outdated.4. as seen from the report these engines are produced abroad.5. she looked tired and depressed.6. the investigations analysed resulted in an interesting discovery.7. later the zeiss workshop was transformed into an industrial enterprise which now is a world leader in optics8. when required these data will be applied in our practical work.