请阅读下面关于宠物的材料，给A—E选择恰当的标题。
A. Many people like animals and take them as their pets. Pet hospitals are very busy. Kind persons who love animals are needed to work in busy animal hospitals. They will teach you the job.
B. Scientists think that pets will probably be much smaller, because people in the future will be living in much smaller spaces. Scientists are already working on making very small farm animals. The same things might be done to make smaller cats and dogs.
C. might have to start turning wild（野生的）animals into pets. This might be the only way to save them from dying out.
D. What about a robot（机器人）for a pet? This may sound silly, but it could become true. Robot dogs have been made to get things, to bark like real dogs. These “pets” might become more and more popular in the future. After all, robots don’t lose hair or eat things the way real pets do.
E. Lots of people miss their pets while they are on holiday. One hotel in Minnesota has solved this problem. They lend cats to their guests. Many experts（专家）believe this idea will become more and more popular. It is very possible that in the future you will be able to have a pet while in a hotel.
小题1:Pet Hotels.
小题2:Smaller Pets.
小题3:Robots for Pets.
小题4:A Panther for Pet.
小题5:People Needed in Pet Hospital.