-Look! The man at the gate _____ be our headmaster.He is always standing there every morning.
-No,it_______ be him.He is holding a meeting in the office now.( )
must; can't
must; mustn't
can't; can't
can't; mustn't
_______ knowledge and experience are important to finish that task.( )
Either
Neither
None
Both
The headmaster introduced ______ to the German visitors before the welcome party.( )
we
us
our
ours
Shirley is still waiting for her flight to New York City ____ the airport.( )
at
under
on
with
We won!The honor belongs ______ all the member of our team.( )
by
of
to
Christine is selling her house,but on ______ other hand she doesn't want to move.( )
a
an
the
/