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