35．Her team failed in the competition．She is trying to get to the ____ of why some members gave up midway．

　　　 A．bottom　　　　　　　　 B．floor　　　　　　　　　 C．result　　　　　　　　　 D．effect

34．However, now Barack Obama who used to struggle with his identity doesn’t see it as a problem any more, ______ an advantage for his successful career．

　　　 A．so　　　　　　　　　　　 B．or　　　　　　　　　　　 C．but　　　　　　　　　　 D．and

33．Brazilian researchers say that temperatures in the Amazon region will rise ____ two to three degrees by 2050．

　　　 A．by　　　　　　　　　　　 B．at 　　　　　　　　　　　 C．to 　　　　　　　　　　 D．from

32．Friends have trouble remembering _____ that Kevin Durant did for fun, other than basketball．

　　　 A．where it was 　　　 B．what it was　　　　　 C．how it was 　　　　 D．why it was

31．Milan says the need for renewable energies in the face of power shortage and global warming ____ urgent and ____ his invention timely

　　　 A．are; make　　　　　　 B．is; makes　　　　　　 C．are; makes 　　　　 D．is; make

30．But Health Minister Stephen Robertson, ____ department devised the kit, said youth suicide was a serious issue．

　　　 A．of which 　　　　　 B．whose 　　　　　　　 C．which　　　　　　　　 D．his

29．____ some support the law, others argue that criminal and civil punishments are not necessary to fight animal abuse．

　　　 A．While 　　　　　　　　 B．Until　　　　　　　　　　 C．When　　　　　　　　　 D．Before

28．There is nobody on the bus ____ a dog．

　　　 A．in place of 　　　　 B．as well as　　　　　　 C．except for　　　　　 D．besides

27．He always checked and rechecked his game and saw ___ he could improve．

　　　 A．where　　　　　　　　 B．when 　　　　　　　　 C．what　　　　　　　　　 D．how