It's a secret, so promise you ________ anyone. (tell)
won't tell
Our future houses will use _____energy, and they are very eco-friendly. (sun)
solar
Do you think we will go ___ holiday to the Moon?
on
Robots will help us do the housework such as _______(clean) the floors, _______(wash) the dishes and so on.
cleaning, washing
Will you have a lot of trees and flowers _____ your house?
around
The mother will be busy but she will get help _____ some friendly house robots.
from
Cars will be much faster and there will be no _______ ______ because each flying car can have its own way.
traffic jams
My class has a discussion ____ waste paper and recycling bins.
on
The more paper people save, the more ______ resources are preserved. (nature)
natural
The three Rs ______ ___ reduce, reuse, and recycle.
stand for
If we breathe ________ air, we will have breathing problems. (pollute)
polluted
One of the advantages of robots is that they can work in __________(danger) and _________(harm) situations.
dangerous, harmful
I don't agree ______ you that robots will be able to write a letter to an English friend.
with
We should find ______ ways to reuse our old items before throwing them away. (create)
creative
Robots can't talk to people or recognise our voices, but scientists are working ____ the solution.
on
No one in my class runs faster than Wilson --> Wilson is the __________.
fastest runner in my class
