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