1. Therefore the roads become ..........( jam) with private cars as people drive to work.
2. Because of the volume of traffic local councils are forced to give.........(permit )for more roads to be constructed.
3. ........(fortune)many houses have to be demolished to make ways for the roads.
4. So people are being .......... (house) in the  suburbs and have to commute to work
5. This leads to more pressure being put on the ......... (adequate) public transport system.
6. The ............. (frequent) of the trains and the buses cause frustration and annoyance.
7. The situation is so ............ (chaos) in some cities now that it is difficult to see any solution.