10 предложении в present simple и перевести в present continuous

1.Usually they have lunch at the office. They are having lunch et the office.
2.Sometimes they have parties in the country. They are having parties in the country.
3.They often invite their friends to them.They are inviting their friends to them.
4.They seldom give us their book. They are giving us their book.
5.I read this newspaper every week. I'm reading this newspaper now.
6.We buy sandwiches every time there. We are buying sandwiches now .
7.They usually buy interesting books in London.They are buying interesting book in London.
8.They have a nice office in Moscow. They are having a nice office in Moscow.
 9.We often invite them to parties. We are inviting them to parties.
10.Every day they have dinner at home.They are having dinner at home now.