Click the player and start listening There are two players. The player one is for listening Part A and the player two is for listening Part BClick the players and start listening: Current Page 1 Page 2 Complete 21 Students entering the design competition have to A produce an energy-efficient design. B adapt an existing energy-saving appliance. C develop a new use for current technology. 22 John chose a dishwasher because he wanted to make dishwashers A more appealing. B more common. C more economical. 23 The stone in John s ‘Rockpool’design is used A for decoration. B to switch it on. C to stop water escaping. 24 In the holding chamber,the carbon dioxide A changes back to a gas. B dries the dishes. C is allowed to cool. 25 At the end of the cleaning process,the carbon dioxide A is released into the air. B is disposed of with the waste. C is collected ready to be re-used. Next Page > Log in or register to post comments