tD.can;maynot39.ProfessorWang,manystudentswanttoseeyou._____theywaithereoroutside?A.DoB.AreC.WillD.Shall40.Ican’tfindMrWanganywhereintheofficebuilding.Where____hehavegone?A.mayB.canC.mustD.Should41.Whereveryou____,there’snoplacelikehome.A.cangoB.mustgoC.mightgoD.maygo42.-Don’ettoposttheletterforme.-I_____.A.won’tB.willC.don’tD.can’t43.-MustItakeataxi?-No,you_____.Youcanwalkfromhere.A.don’tB.mustnotC.don’thavetoD.hadbetternotto44.Thebus_____start;Idon’tknowwhattodowithit.A.can’tB.won’tC.shan’tD.maynot45.Thecarbrokedownontheway,butwe_____getoutofthedesertatlast.A.mightB.wouldC.wereabletoD.could46.Therestofthelecture_____interesting.A.isB.areD.maybeD.sound47.Oneandahalfbananas____eatenbythelittleboy.A.wereB.wasC.havebeenD.wasto48.Thecattle_____stillgrazinginthefields.A.wasB.keepsC.wereD.won’t