Сделайте следующие предложения вопросительными, используйте "When" "Where" and "What"
1. His children live in country. (Where?)
2. They study German. (What?)
3. Mr. Borisov goes on business to London. (Where?)
4. These students get books on Mondays. (when?)
5. Vadim usually comes to us in the evening. (When?)