I am greatly convinced (that)子句 =I am greatly assured (that)子句 I am greatly convinced that prevention is better than cure. Among various kinds of ..., ... Among various kinds of sports, I like jogging in particular. It can be easily proved (that)子句 It can be easily proved that nothing is more precious than time. ... cannot be overemphasized The importance of traffic safety cannot be overemphasized. = As far as I am concerned, . =I am of the opinion that 子句 In my opinion, playing video games not only takes much time but is also harmful to health.