помогите выполнить задание по англ яз

Вопросы заданы в следующем порядке: Общий - К подлежащему - Специальный - Разделительный -Альтернативный

1.They discussed the contract last week. Did they discuss the contract last week? Who discussed the contract last week? When did they discuss the contract? They discussed the contract last week, didn't they? Did they discuss the contract last week or last month?

2.Mary will stay in Kiev for 2 weeks. Will Mary stay in Kiev for 2 weeks? Who will stay in Kiev for 2 weeks? How long will Mary stay in Kiev? Mary will stay in Kiev for 2 weeks, won't she? Will Mary stay in Kiev or in Minsk for 2 weeks?

3.Our manager is very busy now. Is our manager very busy now? Who is very busy now? When is our manager very busy? Our manager is very busy now, isn't he (she)? Is our manager or our director very busy now?

4.Listen! Somebody is playing the piano in the next room. Is anybody playing the piano in the next room? Who is playing the piano in the next room? Where is anybody playing the piano? Somebody is playing the piano in the next room, isn't he (she)? Is anybody playing the piano or the violin in the next room?