35．-Going to the party on Saturday?

　　　 -_____ ．I' 11 be free then．

　　　 A．You bet　　　　　　　 B．You too　 　　　　　 C．I've got it　　　　　　 D．Believe it or not

34．In front of our house stands a tall tree, ______top well above the tops of other trees．

　　　 A．which　 　　　　　　　 B．what 　　　　　　　　 C．its 　　　　　　　　　　 D．whose

33．We must apply what we have learned to our daily work because in no case ______ from practice．

　　　 A．should theory separate　 　　　　　　　　 B．theory should be separated

　　　 C．theory should separate　 　　　　　　　　 D．should theory be separated

32．-John, how did your English exam go?

　　　 -I thought I ______have failed, but in fact I came in the top 10 in the class．

　　　 A．might　 　　　　　　　 B．couldn't 　　　　　　 C．should　　　　　　　 D．mustn't

31．It is absolutely unacceptable to sacrifice people's life and health _______the economic development in any case．

　　　 A．in hope of　 　　　 B．in exchange for 　　　　　　　　　　　　　　　 C．in face of　 D．in need of

30．-What did your parents think about your decision?

　　　 -They always let me do ______I think I should．

　　　 A．when 　　　　　　　　 B．that 　　　　　　　　　 C．how D, what