If I ... (know) his phone number, I ... (send) him a text message. Unfortunately I don't know it.
knew, would send
Tom is a vegetarian but if he ... (not be), he ... (eat) meat.
wasn't/weren't, would
Unless you ... (hurry up), we ... (miss) the train.
hurry up, will miss
We ... (have) the party at the beach provided it ... (not rain).
will have, doesn't rain
If I ... (be) you, I ... (not go) to London in the winter.
were, wouldn't
If I ... (pass) this exam, I ... (go) to university in September.
pass, will go
I ... (lend) you my car as long as you ... (promise) to drive carefully.
will lend, promise
If I ... (have) more money, I ... (visit) Barcelona. Unfortunately I cannot afford to travel now.
had, would visit
Unless you ... (be) over 18, you ... (not be allowed) to drive a car.
are, aren't allowed
I ... (save) 15% if I ... (buy) the laptop online.
will save, buy