Exercise 1: Choose the correct option to complete the sentences.

Select the correct verb form or phrase. Pay attention to the type of conditional and time reference.

Would you know what to do if you a heart attack?

If it hadn't been for you, I here now.

As long as she me, I'll be there for her.

I wouldn't be living here if I the choice.

If there hadn't been a fire extinguisher, the house down.

You become a member, unless you receive an invitation.

happier if you had never met her?

If I her, now I would be happier.

I the exam even if I have to cheat.

They might have spent the whole week at the campsite, provided they enough food and water.