91. be worried about

　　92. bease sth/doing/从句

　　93. tosociate with; be tosociated with

　　94. on account of; because of sth/doing sth

　　95. the same to

　　96. benefit from

　　97. to (a great) extent

　　98. range/vary (in 方面) from.... to....

　　99. in danger of

　　100. be founded on/in