35．Please keep us ____ of any change of address as soon as possible．

　 A．informing　　　 　　　　　　　　　　　　　　　　 B．informed　　　　　　 　　　　　　　

　　　 C．being informed　　 　　　　　　　　　　　　　 D．to inform　

34．Progress so far has been very good．We are, ______, confident that the work will be completed on time．

　 A．however　　　 B．otherwise　 　　　 C．therefore　　　　　　 D．besides　

33．---Have all the mysteries been cleared up?

--- Almost．But ______ only one question ______．

　 A．there remains; answered　　　　　　 　　　　　　　　　　　　　　　　 B．it remains; to be answered

　 C．there remains; to be answered　　　　 D．it remains; answered

32．---You speak very good English．Have you ever been abroad to learn English?

　 ---Thanks．I have never been abroad before but I _____English in Beijing Foreign Language University for four years．

　 　 A．studied　　　 　　 B．study　　 　　　　　 C．was studying　　　 D．had studied

31．Nearly all educators believe that a challenging situation can often ____ the best qualities of a person．

　 　 A．bring up　　　 　 B．bring about　 　　　 C．bring forward　 　 D．bring out　　

30．By the end of 2008, about half a million people had flooded into the city, _____ up around 10 percent of its total population．

　 A．make　　　　 　 B．made　　　 　　　　 C．making　　 　　　　 D．to be made