2、outit,_____Ididn’tunderstand.A.but B.still C.however D.butyet23.Theymusthaveenjoyedthemselvesthere,otherwisetheysolong.A.can’thavestayedB.wouldn’thavestayedC.can’tstayD.wouldn’tstay24.Hesattherewithhiseyes______upontheceiling.A.fixing B.fixed C.closing D.havingclosed25.Mark w
3、as a student at this university from to , ________ he studied very hard andwas made Chairman of the Students’ Union.A.during which time B.for which timeC.during whose time D.by that time26.Ourcountryhasgreatchangesinthepastears,whicharetheresultofreformandopening-up.A.appearedB.happ