21.In order to helpdisabled to lead a normal life and enjoyfruits of social
A. the；不填 B. the；the C. a；the D. 不填；the
22. － Where was itMark Twain spent much of his childhood?
－ Along the Mississippi river.
A. that B. which C. when D.不填
23.Many conflicts of feelings between two generations are set off because our adults can’tthe teenagers in a proper and equal way.
A. reflect on B. impress on C. center on D. relate to
24.What’s theof leading a life if you have no challenges but play all day and all night?
A. sense B. case C. matter D. opinion