—Sandy,is Mr Li in the teachers' office now?
—I am not sure.He ______ be there.
A.mustB.can'tC.mustn'tD.may
﹣﹣Tell him ______ tomorrow,please.
﹣﹣OK.( )
come
to come
comes
coming
Robots ______ more heavy work for us in the future.( )
did
will do
have done
were doing
Who is ______,Tony,David or Andy?( )
short
shorter
the shortest
shortest
﹣﹣Would you like something to drink?
﹣﹣Yes,please.I'd like some ______.( )
beef
juice
fish
bread
Look!There ______ many boys on the playground.( )
was
were
is
are