A.A: How heavy is that dinosaur? B: It's about15 tons.
B.A: Look, there are more dinosaurs over there.B: Wow! They are so big.
C.A: My shoes are size 37. B: Really? You look taller than me.
D.Spring is coming. The sky is clearer and the sun is brighter.
E.A: What's that over there? B: Oh! It's a deer.