81. It is known to us all that he achieved his success his diligence and intelligence.(以…为基础)
82. The more passions we have towards life, the more happiness we
experience.(有可能)
83. It is easy him in a crowd because he is very tall.(挑出)
84. I dream of visiting the West Lake one day, Hangzhou is famous in the world.(介词+关系代词)
85. Liu Xing TV his friend Li Ming came in. (句型：正
在做…，这时…)
81.based on
82.are likely to
83.to pick out
84.for which
85.was watching when