Which of the following choices can help you fly to Beijing at the lowest cost？
A. 20 Aug 07—13 Nov 07 with Singapore Airline.
B. 20 Aug 07—31 Aug 07 with China Eastern.
C. 24 Mar 07—312 Mar 07 with Austrian Airline.
D. 20 Aug—31 Dec 07 with Lufthansa.
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The chips are different from the Global Positioning Satellite technology in that ______.
A. they allow people's location to be monitored
B. they are inserted into a person's body as D cards
C. they provide information to a central monitoring system
D. they bring more danger to the carders
A dolphin might be saying "______" when it claps its jaws.
A. Go back to your home!
B. I am the king here!
C. Who is playing here？
D. Show me who the king is!
Dolphins seem to talk to each other about any of the following EXCEPT ______.
A. their age
B. audio link
C. food sources
D. their emotional state
Which of the following airlines provides the lowest price to Hong Kong？
Air New Zealand.
B. Cathy Pacific Airline.
China Eastern Airline.
D. Atlantic Airline.
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