1 Uzupełnij zdania wyrazami z ramki.
has was
1
3
a The photocopier was fixed two days ago.
b Someone
software.
installed the new
c Why
2producing produced
a Oxygen is.
b Most devices in the lab were
abroad.
their account deleted?
c
by plants.
More and more homes are
own electricity.
discovered invented
a Alessandro Volta
battery in 1800.
b When was touch screen technology
_?
c A new galaxy has been
astronomers.
b Did you take this photo
a smartphone camera?
their
c You can turn off the lights
a remote control.
the electric
4 by with
a The game has already been downloaded
one million users.
by British
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