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