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