Part 8:
33. Minh is taller than Nam.
⇒ Nam is shorter than Nam
34. When did you star learning English?
⇒ How long have you learnt English?
35. They were hungry so they made some sandwiches.
⇔ Because they were hungry, they made some sandwiches.
36. Your friends are making a lots noise
⇒ Please stop making noise.
