2. Sentence transformation.
31. It's very scared for Vinh to have an appointment with the dentist. (It + is/was + adj + for sb + to do sth: ai đó cảm thấy rất...khi...)
32. Don't forget to clean your teeth regularly and have an check-up every six months. (not forget = remember)
33. Sewing was thought to be a useful hobby by Hoa. (bị động)
34. It's very bad for our health if we smoke and drink.
35. What is your younger sister's weight?
