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