Placement test

Hello

Could you check my answers, please? The test I completed shows correct answers without explanation. Thank you!

Have you made dinner … ?

1.
already
2.
still
3.
yet (I know yet is correct, but already can be used in questions too, am I right?)

If you had finished your work yesterday, you … a day off tomorrow.

1.
have
2.
would have t
3.
would have had

We will go to the play together, … she is busy on Friday.

1.
if
2.
provided (also correct)
3.
unless

I saw that … in the yard.

1.
big horrible fierce dog
2.
horrible big fierce dog
3.
fierce big horrible dog

The joke must … very funny. They are still laughing.

1.
be
2.
be being
3.
have been(also correct)

If I had earned more last year I … a new car soon.

1.
would have bought
2.
will buy
3.
would buy