when i came at school lesson were already beginning and my friends was reading text
<em>1. When broken, the material has a black, silken fracture. </em>
<span><em>broken - Participle II,
функция - обстоятельство времени </em>
</span>
<span><em>2. Iron oxide is the major problem when forging steel. </em></span>
<span><em>forging - Participle I,
обстоятельство времени </em>
</span>
<span><em>3. The film, made by Stephen Spielberg, is expected to be a great hit. </em></span>
<span><em>made - Participle II, определение </em></span>
<span><em>expected - Participle II, часть сказ, сказ стоит в форме Present Simple Passive </em>
</span>
<span><em>4. They watched the forest helplessly. </em></span>
<span><em>Причастия НЕТ!
watched - глагол-сказуемое в Past Simple </em>
</span>
<span><em>5. Owing to these methods it has become possible to obtain new mechanical properties of the alloy. </em></span>
<span><em>Owing - Participle I, обстоятельство </em></span>
<span><em>become - Participle II, часть сказуемого, сказуемое стоит в форме Present Perfect Active </em>
</span>