The little boy has just had lunch.He _____be hungry already.( )
A.must.B.mustn'tC.canD.can't
It about eight minutes for the light to travel from the sun to the earth.( )
pays
costs
spends
takes
We are happy to see our city is developing these years than before.( )
quickly
more quickly
very quickly
the most quickly.
Robots more heavy work for us in the future.( )
will do
did
have done
were doing
It is duty to protect the environment.( )
we
us
ours
our
So kind of you to give me a ride to the bus stop.
( )
My pleasure.
Never mind.
It doesn 't matter.
That's nothing to do.