People didn't use to suffer - from allergies., More people used to live and work - on farms., People didn't use to wash their hands - as much as they do today., Food didn't use to be - as clean as it is now., People didn't use to drink - bottled water., Children used to play outside - much more than they do now., People didn't use to buy - their food in plastic bags from supermarket., People didn't use to clean - their houses as much as they do now.,

Pre-Intermediate - USED TO - page 91

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