Трансформируйте предложения в активный залог, используя слова they, we, somebody в качестве подлежащего, где это необходимо 1. harry wasn't punished at all. 2. the problem will be dealt with in the text chapter. 3. they knew that the reason had been explained to us. 4. today plastics are being widely used instead of metals.
2. We shall deal with the problem in the text chapter.
3. They knew that somebody had explained the reason to us.
4. Today we are widely using plastics instead of metals.