MIXED TENSES
Nobody has cleared up this room for days.
NOT
This room _____ for days.
has not been cleared up
Robots ____ (not use) for household chores in the 1970s.
were not used
Somebody told me these computers were cheap!
WAS
I ______ these computers were cheap.
was told that
They are not telling us the truth.
BEING
We _____ the truth.
are not being told
The first successful robots _____ (create) in Japan in the 1980s.
were created
Parents shouldn’t give household tasks to children under ten years old.
GIVEN
Children under ten years old _____ household tasks.
should not be given
You must deliver this note to the headteacher this afternoon.
BE
This note _____ to the headteacher this afternoon.
must be delivered
Some people think that great chefs ______ (can’t / replace) by robots, because good cooking is too complicated.
can't be replaced
They won’t allow you to go out if you don’t eat your dinner.
ALLOWED
If you don’t eat your dinner, you ______ go out.
You won't be allowed to
Millions of domestic robots _____ (make) since the beginning of the century.
have been made
Most of the housework in this house ______ (do) by me!
is done
Robots that clean swimming pools _____ (introduce) into both of the pools in our town recently. They really keep the pools clean!
have been introduced
New technologies which can help with household tasks _____ (develop) at the moment.
are being developed
This laboratory is totally modern and all of the experiments now _____ (conduct) by robots.
are being conducted
Someone needs to sweep this floor.
SWEPT
This floor _____ by someone.
needs to be swept