Doctors tell us_____our hands before and after every meal.( )
wash
washed
washing
to wash
I have a few books on Chinese food.You can borrow ___________ if you want.( )
one
it
much
a little
﹣﹣﹣What's twenty and fifty?
﹣﹣﹣It's ____________________.( )
fifty
seventy
eighty
ninety
If the weather is nice,we could have a(n)___________ in the park.( )
picnic
chance
place
idea
Jim started to play ___________ violin when he was five.( )
a
an
the
/
He is the authorof three books on art and many readers love his works.( )
seller
helper
writer
teacher