It is difficullt to remember and write Chinese traditional characters(繁体字),____they are a great part of Chinese culture.We should keep them( )
but
and
or
until
I'm awfully sorry for bringing you so much trouble.
__________( )
Never mind.
It's a pleasure.
Of course not.
You are welcome
Please______the rubbish into different litter bins according to the signs.( )
puts
put
putting
to put
The self﹣driving plane proves to be useful in many ways.___smart invention it is!( )
What
What a
What an
How
Sue practises______the violin hard and often gives wonderful performances.( )
play
played
to play
playing
The debate on whether to keep pets_____forty minutes yesterday afternoon.( )
last
lasted
will last
has lasted