UNIT 5. INVENTIONS AND LIFESTYLES » Стр.140 (2)

Choose the correct answer. 1–b; 2–c; 3–a; 4–b; 5–b; 6–c; 7–b; 8–a; 1. You can’t get access to the programme until you b) have register 2. We had been using land-lines until cellular phones c) appeared. 3. They won’t return their books until they a) have read them all. 4. We will take the dog for a walk when it b) stops raining. 5. Will you explain the problem when she b) arrives. 6. When I c) have time, I’ll paint the house. 7. I won’t get married until I b) get a job. 8. When I a) retire next June, I will have been working for this company for 25 years.