Simon, do you know who invented the kite?
Sure! It ____ by Mozi over 2,000 years ago.( )
A.is inventedB.invented
C.was inventedD.will be invented
Let's____home.It's late now.( )
go
going
to go
John is the boy ____saved the little girl from the fire.( )
when
where
who
Although we don't know what was discussed , we can feel the topic____( )
has changed
was changed
has been changed
I'm sure____our team will win the match.( )
if
that
There is a____in our zoo.( )
pigs
panda
dogs