Will and Might

There _______________ (certainly / be) an increase in the number of electric vehicles in the next ten years.

As people buy more cars, there ______________(be) more congestion on the roads.

Environmentalists hope that people ______________ (use) their cars less in future.

It's not certain, but the development of high speed rail ______________________ (encourage) passengers to use the train instead of flying or driving.

Air travel ________________ (grow) faster in developing countries than in developed countries.

SkyTran is still a new technology. We ____________ (not / see) it in cities in the near future.

Having electric bicycles ___________________ (mean) that many more old people start riding bicycles.

Moving walkways _____________________ (not / be) cheap to install.