There are several future plans for extension of the system.

At the end of the straight is another point, put in place for the new extension being built.

Already she was thinking about asking her father for an extension.

In the 1990s planning for an extension of the line began.

The construction work for the extension of the building is still going on.

People told each other Russia had asked for an extension of time.

President Bush had to ask for an extension on his taxes.

The league didn't act in the required time, then asked for an extension.

A plan for the extension of airport is being developed.

The first would provide for an extension of the Capitol's east front.