Use to be in Present / Past / Future Simple. (Обращайте внимание на сигнальные cлова) 1. When my granny … young, she … a ballet dancer.
2. Fred … thirteen now. He … fifteen in two years.
3. The climate … changing. The animals … in danger.
4. The wind … strong yesterday. The weather … bad.
5. We … at work yesterday. We … at work tomorrow.