1. Their garden is about 18 meters high (a). 2. I’m the tallest member of my family (a). 3. I think this is the most beautiful beach on the south coast (c). 4. Your art project is better than mine (b). 5. The weather's awful! Yes, but it isn't as bad as yesterday (a). 6. I think Mrs Thomas is the best teacher in the school. She's really nice (c).