171,Hesuddenlyreturned____arainynight.A,onB,atC,inD,during172,NewYorkandBostonaretwoof___seaportsintheworld.A,thebusierB,thebusiestC,busierD,busiest173,Ofmythreecourses,historyrequires___trading.A,moreB,themostC,muchm

　　171,Hesuddenlyreturned____arainynight.A,onB,atC,inD,during

　　172,NewYorkandBostonaretwoof___seaportsintheworld.

　　A,thebusierB,thebusiestC,busierD,busiest

　　173,Ofmythreecourses,historyrequires___trading.

　　A,moreB,themostC,muchmoreD,many

　　174,Johnsonstudiesharderthan____intheclass.

　　A,allB,anyotherC,anyonesD.anyoneelse

　　175,TheRepublicanpartyisoneofthe____partiesoftheU.S.A.

　　A,politicaltwoprincipalB.Principalpoliticaltwo

　　C,twoprincipalpoliticalD,principaltwopolitical

　　176,IhaveneverbeentoParisbutthat’sthecity____.

　　A,whereImostliketovisitB,I’dmostliketovisit

　　C,whichIliketovisitmostlyD,whatI’dlikemosttovisit

　　177,_____inForm3isthecleverest.

　　A,SmallestboyB,ThesmallestofboyC,ThesmallestofboysD,Thesmallestoftheboys

　　178,Youshouldspendasmuchtimeasyoucan____English.

　　A,onreadingB,readC,readingD,inordertoread

　　179,LilyandMary,help___tosomeapples.

　　A,youB.yourC,yourselfD,yourselves

　　180,Thetowerisn’t____buildinginthiscity.

　　A,tallB,thetallestC,highD,highest