41.ThereareotherproblemswhichIdon’tproposeto_A_atthemoment.
AgointoBgoaroundCgoforDgoup
atthemoment目前，现在。gointo谈论，讨论。
42.Don’tgetyourschedule_C_;staywithusinthisclass.
AtochangeBchangingCchangedDchange
43.Itisquitenecessaryforaqualifiedteachertohavegoodmannersand_A_knowledge.
AextensiveBexpansiveCintensiveDexpensive
extensiveadj.范围广大的，广博的;extensiveknowledge知识渊博。
expansiveadj.扩张的，面积广阔的;expensiveadj.昂贵的，高价的。
intensiveadj.仔细深入的，细致入微的。
54.Thepatient’shealthfailedtosuchanextentthathewasputinto_C_care.
AtenseBrigidCintensiveDtight
tosuchanextent到如此的程度。intensivecare特级护理。
44.Jeandoesn’twanttoworkrightawaybecauseshethinksthatifshe_B_ajobsheprobablywouldn’tbeabletoseeherfriendsveryoften.
AhastogetBweretogetChadgotDcouldhavegot
46.Alovemarriage，however，doesnotnecessarily_B_muchsharingofinterestsandresponsibilities.[alovemarriage因相爱而结婚形成的婚姻]
AtakeoverBresultinCholdonDkeepto
notnecessarily未必;interestsn.利益。takeover接管，接收;
resultin导致，结果是;holdon坚持，挺住;keepto坚持，遵守。
47.Theabilitytostoreknowledgemakescomputersdifferentformeveryothermachine_A_invented.[everadj.曾经，以往任何时候]
48.I’mnotsurewhetherIcangainanyprofitfromtheinvestment，soIcan’tmakea(n)_C_promisetohelpyou.
AexactBdefinedCdefiniteDsure
definite：unlikelytobechanged不可能被改变的;definitepromise不可能被改变的诺言。
49.Ihavekeptthatportrait_B_Icanseeiteveryday，asitalwaysremindsmeofmyuniversitydaysinLondon.
AwhichBwhereCwhetherDwhen
which在定语从句中除了做主语就是做宾语，when在定语从句中只能做时间状语。
50.Thesportsmeet，originallyduetobeheldlastFriday，wasfinally_D_becauseofthebadweather.[sportsmeet=sportsmeeting运动会]
AsetoffBbrokenoffCwornoffDcalledoff
