2. Change the sentences into passive voice: 1.Every year Viet Nam export millions tons of rice. 2.After Tet holiday Vietnamese usually plant trees in their neighborhood. 3.How many festivals do you celebrate in your community? 4.What have you done since you came back? 5.They repaired our desk last week. 6.We haven’t seen him for a long time. 7.Nobody has met our grandmother since last night. 8.The girls separated the rice from the husk. 9.They will build a new house next year. 1.We are going to buy a car.