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