20. How much does it cost to rent a towel?

A. $1. B. $3. C. $10.

第二部分阅读理解（共两节，满分40分）

21. Sydney Tower is ______ in Sydney, Australia．

　A. the busiest street B. the biggest station

　C. the most beautiful park D. the highest point

22. If you want to book a ticket to Sydney Tower, you can' t _______ ．

　A. email sydneytower@ hotmail. Corn B. fax 02 9333 9203

　C. search www. Sydneytower. Com. Au D. dial 02 9333 9222

23. Frank wants to go to Sydney Tower with his two children, he will pay ______ ．

　A. $60 B. $90 C. $120 D. $150

　　B

　　Humans have been keeping animals as pets for tens of thousands of years, but Dr Jean-Loup Rault, an animal scientist at the University of Melbourne in Australia, believes new companions are coming: robot pets.

　　"Technology is moving very fast," Rault told ABC News, "The Tamagotchi in the early 1990s was really the first robotic pet, and now Sony and other big companies have improved them a lot."

　　This may not sit well with pet lovers. After all, who would choose a plastic toy over a lovely puppy? But Rault argues that the robotic kind has a lot going for it: "You don't have to feed it, you don't have to walk it, it won't make a mess in your house, and you can go on a holiday without feeling guilty." The technology also benefits those who are allergic to pets, short on space, or fearful of real animals.

It's not clear whether robot pets can replace real ones. But studies do suggest that we can bond with these smart machines. People give their cars names and kids give their toy animals life stories. It's the same with robots. When Sony stopped its repair service for its robot dog Aibo in March 2014, owners in Japan held funerals.