More and more people became ____ (关注) the effects of pollution on health

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Moreandmorepeoplebecame____(关注)theeffectsofpollutiononhealthMoreandmorepeoplebecame____(关注)theeffect

More and more people became ____ (关注) the effects of pollution on health
More and more people became ____ (关注) the effects of pollution on health

More and more people became ____ (关注) the effects of pollution on health
More and more people bacame concerned about the effects of pollution on health.

concerned at/over