Exercise 1: Complete the following sentences, using the correcl form of the verbs in brackets.

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
I would have sent you a postcard if I (have) your address.

1. If I (know) that you were ill last week, I would have gone to see you.
2. I would have bought a new bicycle if I (have) enough money.
3. If I had had a motorbike, I (go) home immediately.
4. If he had worked hard, he (pass) his examination.
5. We (enjoy) the party better if it had not been so long.
6. He wouldn't have begun to learn Russian if he (know) the difficulties.
7. If the rain (stop), I would have gone for a walk.
8. If you (call) him, he would have come.