rwithstudentssinginganddancinghappilyattheparty.\rA.isB.wasC.areD.were\r20.—•Icalledyouat6o,clockyesterdayevening,butnobodyanswered.\r—Imsorry.ImyfrienddownloadthemovieKungFuPandaII\rwhenthetelephonerang.\rA.wouldhelpB.helpedC.washelpingD.amhelping\r21.Hewentintohisroom,___thelightandbegantowork.\rA.hasturnedonB.turnedoff\rC.turnedonD.hasturnedoff\r22——WhereisMichael?\r-----HeTVathome,Ithink.\rA.watchesB.watched\rC.iswatchingD.waswatching\r23.——LinKai,handinyourhomework,please.\r—Oh,sorry.Iitathomethismorning.\rA.wasleavingB.hasleftC.willleaveD.left\r24Mypenpalsaidhewouldwritetome,butIanylettersfromhim\rsofar.\rA.won'treceiveB.haven'treceived\rC.hadn,treceivedD.didn,treceive\r25.—Lookatthenoisykids!\r—Haven'tyouheardthesaying“Whenthecatisaway,themice?”\rA.playB.playedC.areplayingD.willplay