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