29．Everyone wants to live in a beautiful, comfortable and “livable ” place, but not ________ know where it is．

　　　 A．some　 　　　　　 B．either　 　　　　　 C．all　 　　　　　　　 D．both

28．The comedy Tooth Fairy is based on the story all western children know: If a kid leaves a tooth under their pillow, they’ll receive a visit from the tooth fairy, who takes the tooth and leaves a gift ________．

　　　 A．in general　　　　　　　　　　　　　　　　　　　　　 B．in exchange　　　　

　　　 C．in total　　　　　　　　　　　　　　　　　　　　　　　 D．in common

27．Nearly four hundred supermarkets in Beijing are preparing to dim their lights ________ the "Earth Hour 2010" on Saturday night．

　　　 A．honor　　 　　　　　 B．honoring　 　　　 C．to honor　 　　　　 D．having honored

26．Younger adults who get either little sleep or a lot of it ________ see a greater expansion in their waistlines over time．

　　　 A．may　 　　　　　 B．must　　 　　　　 D．need　 　　　　　 D．shall

25．________ theme of the Shanghai Expo is “Better city, better life”． It will send _____ message to people around the world to care about the places where they live．

　　　 A．/…a　　　　　 　　　　　　　　　　　　　　　　 B．the…a　　　　 　 C．a…the　　　 　　　 D．/…the

24．Toyota Motor President Akio Toyoda on Monday apologized to Chinese consumers , who ________ the world's biggest auto market , over the company's massive global recall．

　　　 A．make up　 　　　　 B．bring up　　 　　　 C．put down　　 　　　 D．set down

23．A salty diet may increase the risk of stomach cancer ________ 10 percent, South Korean researchers found in a study of more than 2 million people．

　　　 A．at　 　　　　　　　 B．to 　　　　　　　　 C．by　 　　　　　　 D．for

22．Some people are worrying about the possibility ________ cellphones could be responsible for a range of illnesses, from rashes to brain tumors．

　　　 A．that　 　　　　　　 B．why　 　　　　　　 C．how　 　　　　　　 D．whether