Units 21-23 » Стр.94 (A)
Revision: Units 21–23 A. Choose a, b or c. 1–a; 2–c; 3–c; 4–b; 5–a; 6–a. 1. Students a. mustn’t talk to each other during the exam. 2. Colin c. needs to rest. He's got a temperature and a bad cough. 3. I'll make the reservation at the restaurant. You c. don’t have to worry about it. 4. You b. can’t leave your car there. It isn’t allowed. 5. Did you have to wait for someone to change the flat tyre yesterday? 6. He a. doesn’t need to sign up to become a volunteer.