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What is more expensive: a book or a newspaper?
What is more delcious: an apple pie or a cream cake?
What is more comfortable: a chair or an armchair?
What is more economical: a microwave oven or a toaster?
A book is more expensive than a newspaper.
A cream cake is more delicious than an apple pie.
An armchair is more comfortable than a chair.
A toaster is more economical than a microwave oven.