Tom,the baby is sleeping.Please ______ the radio a bit.( )
turn on
turn off
turn up
turn down
My parents often tell me ______ hard.( )
study
to study
studying
studied
What's your brother doing now?He _____ in the room.( )
sings
sung
has sung
is singing
Who is ______,Tom or Dave?Dave.( )
tall
taller
tallest
the tallest
There are ______ cars in the street.It's so crowded.( )
hundred
hundreds
hundred of
hundreds of
Mr.Wang teaches _______ Chinese.( )
us
we
our
your