Choose the best answer.
We will use more _________energy in the future.
solar
sunny
sun
sunlight
Choose the best answer.
Which ________of transport do you think will be used in the future?
mean
meaning
meanings
means
Choose the best answer
We are looking for types of vehicles that help us to avoid ___________.
traffic
traffic jam
rush hours
walking
Choose the best answer.
The Segway, which is a ______vehicle, will be a success.
two-wheels
two wheels
two wheel
two-wheeled
Choose the best answer
With teleportation, you disappear at a place, and then __________in another place seconds later.
appears
appeared
reappear
reappears
Choose the best answer
Every day over 1,000 new cars add to the city and the city of over 20 million people is getting more and more _________.
expensive
famous
difficult
gridlocked
Choose the best answer.
We try to make the future green by using vehicles or kinds of energy that are ___________.
environmentally friendly
environment friendly
environmentally friendship
environmental friendly
Choose the best answer
It will be __________to ride a jet pack in bad weather because it doesn’t have a roof.
enjoyable
pleasant
unpleasant
comfortable
Choose the best answer.
A sky safety system can help cars to ________ traffic jams and crashes.
prevent
have
use
take