..... she (pass) the test if she studies?
wil..pass
if she doesn't study, she (fail) the test
will fail
If she gets an A on her test, she (stop) worrying
will stop
They (go) to the park if they have time tomorrow
will go
.....Jenny (read) a book if she buys one
will...read
.... Vanessa (sleep) if she goes to bed
will....sleep
If you feel lucky, you (expect) good thigs
will expect
Mary (be) happy if she gets a good grade
will be
Karla (not go) to the party if you don't invite her
won't go
if Joseph studies, he (not fail) the test
won't fail