1. Where does your brother work? He works at an institute.(Pr.S) 2. Was your grandmother sleeping when you came home yesterday?(past.cont and past.s)3. What will your brother do tomorrow? (Fut.S.)4. l didn't go to the shop yesterday. I will go to the shop tomorrow. (past s. and fut.s)5. Where was Kate going when you met her yesterday?(past cont. and past s,) 6. Look at these children: they are skating very well. (pr.cont.)7. Did you skate last Sunday? Yes, we were skating the whole day last Sunday.(past s. and past cont)8. My brother can skate very well. He skates every Sunday.(pr s)9. What are you doing now? I am enjoying the party. (pr cont)10. What were you doing at three o'clock yesterday? I was having dinner.(past cont)