How are RFID chips used at present?
A. to adjust the temperature in smart houses
B. to create “ambient intelligence”
C. to keep track of farm animals and pets
D. to communicate with robots
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According to the article, what will tell you to buy more food?
A. cabinets
B. stoves
C. refrigerators
D. TV screens
What is the best heading for Section B of the article?
A. Smart Windows
B. Walls that Change Color
C. All About OLEDs
D. Intelligent Homes
The word “they” in the 2nd sentence of paragraph G refers to ______.
A. humans
B. robots
C. scientists
D. faces
According to the author, the smart house that is described in the article ______.
A. has already been built
B. could be built in 25 to 30 years or less
C. could be built in the next 10 years
D. can never be built
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