• Перепишите след. предложения; подчеркните в каждом из них глагол-сказуемое и определите его видо-временную форму и залог.
    a) 1. Today scientists are still looking for the substance as a source of energy. 2. The Mendeleyev system has served for almost 100 years as a key to discovering new elements.

    б) Synthetic rubber products were developed between 1914 and the 1930s.
    2. The intensity of this process is influenced by many factors.

Ответы 1

  • a)1are looking for-Present Continuous Active.2has served-Present Perfect Activeб)1were developed-Past Simple Passive.2is influenced-Present Simple Passive
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