Write the correct from or tense of the verbs in brackets.
1. At this time tomorrow l______________( travel ) to the countryside.
2. We want to live in a neighbourhood which______________(be ) free crime.
3. The world 's population _____________( increase ) as we speak , isn't it ?
4. He ___________(enjoy ) reading news about autombile and transport inventions.
5. People________________( mainly , use ) electric car by the middle of the 21st century.
6. Residents in the city_________________( suffer ) from air pollution for a long time.
7. Many people ________________( move ) to cities now , making them overcowded.
8. Wind power _________________( use ) by many countries in the future.
9. Fossil fuels _________________( replace ) by greener energy sources soon.
10. A big hydro power plant _____________( build ) on this river if there are no changes.