15. Digital life - 16. Amazing science - REVIEW 4 » Стр.92 (6-7)

6. Complete the sentences with if or unless. 1. If you fill the jar, the experiment will work. The experiment won’t work until you fill the jar. 2. I won’t cover the picnic the unless rain gets worse. If I’ll cover the picnic the rain gets worse. 7. Correct the mistake in each sentence. 1. If you want to start a fire, blow the flame gently at first. 2. Dad won’t cook a pizza for you unless you text him later. 3. Unless we meet before 8 p.m., we won’t have time to buy tickets. 4. Wrap yourself in a blanket if you have a fever. Vocabulary 1. Match the sentence halves. 1–f; 2–b; 3–e; 4–d; 5–a; 6–c.