16.Itisinthesouth-easternpartofthecountry,_____mostAustralianslive.A.whereB.thatC.whichD.what17.Althoughmostofthecontinent________extensiveplainsandnothinghills,therearealsospectacularforests.A.consistsofB.isconsistedo

　　16.Itisinthesouth-easternpartofthecountry,_____mostAustralianslive.

　　A.whereB.thatC.whichD.what

　　17.Althoughmostofthecontinent________extensiveplainsandnothinghills,therearealsospectacularforests.

　　A.consistsofB.isconsistedofC.consistofD.areconsistedof

　　18.Neitherthestudentsnortheteacher______anythingaboutthematter.

　　A.knowB.knowsC.havenotknownD.hasnotknown

　　19.Thetutoraccusedthestudentsofgreat____B___.

　　A.efficiencyB.inefficientC.inefficiencyD.efficient

　　20.Theyhadgoodreasontothinkthattheexperiencewasworth______.

　　A.totryB.triedC.tryingD.beingtried

　　Shemovedonslowlyandthen,quitebychance,stoppedwhereasmallcrowdofmenhadgatheredroundacounter.Shefoundsomefinepipesonsaleandthe__28_wereverybeautiful.Edithdidnothesitateforlong,althoughherfatheronlysmokedapipeonceinawhile,shebelievedthiswas__29__topleasehim.

　　Whenshegothome,withhersmallbutwell-chosenpresenthiddeninherhandbag,itwastimeforsupperandherparentswerealreadyattable.Hermotherwasingreatexcitement."Yourfatherhasatlastdecidedtostopsmoking,"shetoldherdaughterhappily.Edithwasso__30__thatshecouldnotsayasingleword.

　　Partlytohavearest,Edithpausedinfrontofacounter,wheresomebeautifultieswereon__25__."Theyarerealsilk,"theshopassistanttoldherwithasmiletryingto__26__hertobuyone.ButEdithknewfrompast__27_thatherchoiceoftieshardlyeverpleasedherfather.