1.The old man down the river now.are goingis gonehas goneis going2.I

1.The old man down the river now.
are going
is gone
has gone
is going
2.I never in an American school.
Is being
are being
have been
will be
3.Next year we biology in science class.
will be studying
shall study
were studying
studied
4.Mum a birthday cake when Natalie came home.
were baking, was come
was baking, is coming
was baking, came
had baked, had come
5.Everybody a present for Sandra on her birthday yesterday.
gave
has given
will give
is given
6.My best friend always me postcards on holidays.
had sent
sends
is sending
are sending