135.　 best of all 最，首先，尤其

134.　 be worth doing sth. 值得做…

133.　 be worried about 担心

132.　 be used to sth. (被)用来…

131.　 be used to doing 习惯于

130.　 be used for　 (被)用来做…

129.　 be used by +人　 (被)…用

128.　 be uesd in 被用在..

127.　 be used as (被)当作….来用

126.　 be up (时间等)到了，结束了