Заполните пропуски предлогами и наречиями, где необходимо.
To achieve ___ the level ____ knowledge; to solve ___ the problem; is becoming ___ great importance; to attach importance ___ the problems; to cause ___ changes ___ the environment; the sharp increase ___ water pollution; cases ___ sickness are caused ___ the lack ___ clean water.
To achieve ___ the level ____ knowledge; to solve ___ the problem; is becoming ___ great importance; to attach importance ___ the problems; to cause ___ changes ___ the environment; the sharp increase ___ water pollution; cases ___ sickness are caused ___ the lack ___ clean water.
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