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