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