Mom, I visit the Science Museum tomorrow?
I'm afraid you can't.It is closed on Monday.( )
A.mustB.mayC.should
Get up early,_____ you will miss your train.( )
or
and
but
I _____ a math problem with Joe when Mike called me up.( )
have discussed
discussed
was discussing
The nurse _____ is looking after the old man is Tom's sister.( )
which
who
what
She is_______famous singer in China and has many fans.( )
the
a
an
Helen's mother always goes shopping____ Friday afternoons.( )
in
on
at