mouth after chewing tobacco Oral Implications of Use/Abuse - An Introduction to Substance Use Disorders for Dental Professionals File:BeforeandafterGruen.jpg - Wikimedia Commons
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In the second example, there is a clause after the as if

In contrast, hookah users are emerging as a notable segment, especially among younger consumers seeking social experiences

People may think that vaping is better than smoking a cigarette

Most forms of tobacco advertising and promotion in the UK are banned, and rules introduced last year mean cigarettes and tobacco must be sold in plain green packets

He gets in good moods a lot, and Connie and Bella and his boys all bring him joy

DuPont scientists then conducted tests on humans, asking a group of volunteers to smoke cigarettes laced with C8
