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5. Choose the correct sentence in each pair. 1–b; 2–b; 3–a; 4–b; 5–a. 1. b. If you meet her, I’m sure that you’ll like her. 2. b. If you don’t go with us, you'll miss out on a lot of fun. 3. a. If you go, we’ll have a better time. 4. b. It’ll be a pleasure if you come. 5. a. If he doesn't smile, I know he’s not happy with me.