1 . A very beautiful town Bravuogn in Switzerland has banned tourists ________ taking photos in order to get holidaymakers(度假者)to take a break from social media. (用适当的词填空)
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2 . They hope paper bags will ________ (ban)someday too and want shoppers to use the same reusable bags for years. (所给词的适当形式填空)
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3 . Her husband died because of smoking last month and she ________ (ban) her son from smoking ever since. (所给词的适当形式填空)
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