The Biology problem is too hard,so students can work it out.( )
little
few
a little
a few
The new school ______ last year.( )
builds
built
was built
is built
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