1. We're playing "Monopoly”. Would you like to to join/to unite.?
2. They need the idea that join/ unite. them.
3. The policy/politics of our company is to develop international cooperation.
4. The new policy deals with the current economic/economical situation in the country.
5. It took some time for the two halves of the bridge join/ unite.
6. Nowadays more and more young people are getting interested in policy/politic.
7. The new generation of washing machines is supposed to be
extremely economic/economical.
8. Time has come for us to develop (a) new policy/politics for our company.
9. During the crisis a lot of people joined/united the army of the unemployed.
10.Our use of central heating is fairly economic/economical