
28.How did people usually deal with large quantities of oranges in Seville?
A.By throwing them away as waste.
B.By using them to make orange jams.
C.By producing clean energy with them.
D.By sending them to supermarkets to sell.
29.What does paragraph 2 mainly focus on?
A.The advantages of the oranges.
B.The background of the pilot program.
C.The popularity of the clean power.
D.The trial process of the pilot program.