The Smiths usually have ____________ picnic in the park on Sundays.
a
/
the
an
Everyone_______him,because he is friendly.
Jenny and Sally are_______.They come from _______.
When I walked past her room, she_______ an English song.
- He________ if he is free.
—What was Tom doing _______ it was raining? —He was doing his homework in the bedroom.