Упражнение 2. Раскройте скобки, запишите предложение ВНАЧАЛЕ В УТВЕРДИТЕЛЬНОЙ , ЗАТЕМ ВО И ОТРИЦАТЕЛЬНОЙ ФОРМАХ
1. We … (go) to Moscow last summer.
2. He … (stay) at his friends yesterday.
3. My elder sister … (buy) a new watch.
4. All students … (finish) their work.