1.   But if fuel could be made on the Moon, the transportation system would be much more economical.

2.   Seattle has a very modern public transportation system.

3.   Such a transportation system will exert a constant demand for fuel both at the space station and on the lunar surface.

4.   The de Young can not wait that long for a reluctant city to build an adequate public transportation system.

5.   The sprawling conference and resort center even has its own transportation system.

6.   The problems with the local transportation system were severe but still remediable.

7.   Also to be considered is the fact that the school transportation system in place now is acknowledged by virtually all parties to be safe and reliable.

8.   Also, residents of the New York region were more satisfied with their public transportation systems than others were.

9.   Although U.S. farms are not as tightly packed as in Britain, our efficient transportation system can move animals far and fast.

10.   And can a city build a public transportation system without screwing it up?