My little brother is a tidy boy. He always keeps his room ________.( )
clean
to clean
cleaning
cleaned
The policeman warned us________ the busy street when the traffic lights are red.( )
don't cross
not crossing
not to cross
can't cross
The doctor was busy ______on the woman at that time.( )
operate
operating
to operate
operated
My necklace is not the only thing is missing.( )
/
which
who
that
Maria's brother eats too much sweet food.________.( )
So does he
So he does
So he is
So is he
The river near our village is about long.( )
three﹣hundreds﹣meters
three﹣hundred﹣meter
three﹣hundred﹣meters
three hundred meters