If he had slipped .................. he (fall) 500 metres.

You ..............(not make) such a mistake if you had been more careful.

If he is out, I ..........................(call) tomorrow.

I could repair the roof myself if I ......................(have) a ladder.

If he ......................(take out) a loan, he'd be able to by a car.

If the food ...............(not be) so good, we wouldn't have eaten so much.

Unless she ................(stop) eating like that, she'll have heart problems.

Provided you .............(wait) five minutes, I'll give you a lift.

If they hadn't walked 40 kilometres, they ..........(not be) exhausted now.

If i had practiced more, I ..............................(be) a professional gymnast now.