What are on show in the library?
Some photos _____ on the Great Wall.( )
A.are takenB.takenC.are takingD.were taken
Polluted air and water kill plants, animals, and even people.( )
can
can't
should
shouldn't
With the development of China, Chinese ______by more and more people in the world.( )
speaks
is spoken
speak
is speaking
The man in blue is old to finish the difficult task in such a short time.( )
too
very
so
such
While Xiao Ming his homework, his mother came with a cup of tea.( )
has doing
had done
is doing
was doing
Though the man is not handsome, is very clever.( )
its
it
he
she