Cars _______________ in factories.
are produced
were produced
produced
is being produced
The most famous portrait in the world, Mona Lisa, ________________ by Leonardo da Vinci.
is painted
was painted
painted
were painted
Google ____________ officially ____________ in 1998.
were launched
is launched
launches
was launched
The Harry Potter series __________________ by J. K. Rowling.
wrote
written
writes
was written
When ___________ the Great Wall of China ____________?
were / built
was / built
is / build
built / were
The tunnel _________________________ at the moment, so it's closed for all traffic.
repaired
is being repaired
is repaired
will be repaired
Olives _______________ in Mediterranean countries.
has been grown
is grown
was grown
are grown
Wooden toothpickes ______________ from birch wood.
will be cut
are cut
were cut
have been cut
The light bulb ____________________ by Thomas Edison.
was not invented
is not invented
were not invented
invented
Brilliant ideas ________ usually __________.
would / copied
copy
is / copied
are / copied
X-rays __________________ in 1895 by Wilhelm Conrad Roentgen, who was a German Professor.
discovered
were discovered
are discovered
is discovered
The movie Avatar _______________ by James Cameron.
directs
is being directed
directed
was directed
The last Olympic Games _____________ in Tokyo.
will be held
were held
are held
have been held
Scissors ___________________ for cutting thin materials, such as paper and metal foil.
use
used
is used
are used
How often __________ hotel carpets __________?
do / clean
is / cleaned
are / cleaned
was / cleaned