Exercise 1. Put the verbs in brackets into the correct form: a) 1. If I find your passport, I (telephone) you at once.
2. You can use my phone if yours (not work).
3. She will be absolutely furious if she (hear) about this.
4. If London airport is clear of fog, we (land) there.
5. If you (not know) the meaning of a word, you may use a dictionary.
6. If he (work) hard today, can he have a holiday tomorrow?
7. If we leave the car here, it (not be) in anybody’s way.
8. If you (stay) here a little longer, you will see him.
9. We shan’t go out unless it (stop) raining.
10. I’ll probably get lost unless he (come) with me.
11. If you (not believe) what I say, ask your mother.
12. We’ll go abroad this year if we (have) enough money.