Поставьте следующие предложения в отрицательную форму: 1 I translated some interesting articles lest week. 2 I finished work at 5 o'clock yesterday. 3 My son returned home late. 4 The engineers discussed some problems of their firm. 5 The students read the article before the exam.
1. I did not translate some interesting articles last week.
2. I had not finished work at 5 o'clock yesterday.
3. My son did not return home late.
4. The engineers did not discuss some problems of their firm.
5. The students did not read the article before the exam.