Поставьте следующие предложения в отрицательную и вопросительную форму. 1)he has some new english books. 2)there were some newspapers and magazines on that little table. 3)they can speaksome foreign languages. 4)he knows some engineers of our office. 5)we sent some letters to foreign firms yesterday 6)there is some milk in the cup. 7)you can see some cables and telexes on that desk. 8)our director received some businessman the day before yesterday