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You have to keep dangerous chemiclas in a safe place.
have to be kept
Oops!
Okay!
People are using computers in all kinds of work.
are being used
Oops!
Okay!
The million people watch TV every day.
is watched
Oops!
Okay!
They will take her to hospital tomorrow.
will be taken
Oops!
Okay!
They're going to knock down the old theatre.
is going to be knocked down
Oops!
Okay!
They were still painting the walls when I left.
were being painted
Oops!
Okay!
They picked the students from school.
were picked
Oops!
Okay!
The critics gave the play good reviews.
was given
Oops!
Okay!
An American invented the laser.
was invented
Oops!
Okay!
You can only see these parts through a microscope.
can be seen
Oops!
Okay!
He put off the meeting.
was put off
Oops!
Okay!
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