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