阅读下面短文，按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空。
Nowadays,peoplearetalkingabouttheexpansionofcollegeenrollment.Thisnewpolicy___16___(adopt)bythegovernmentbenefitsalotofhighschoolgraduatesandthereforethecountryaswell.There___17___(use)tobesuchafiercecompetitionamonghighschoolgraduatestoentercollege___18__manyofthemstudiedtoohardonlytospoiltheirhealth.Evensomeofthemkilled___19___onlybecausetheyfailedintheentranceexams.Nowtheywillhavemorechancestoattendcollegeandthecountryisalsogoingtobenefit  20   it.Therewillbemorewell-educatedandhighlyqualifiedcitizensandprofessionals,___21___isessentialtothedevelopmentofthecountry.
  22  ,nowsomestudentswhootherwisecan’tenteracollegearenotstudyinghardenough.Theythinknowsincecollegesenrollmorestudents,theyaremore 23  (like)tobeadmittedintooneofthemevenwithoutahighscore.
24 (doubt),althoughthereisstillroomforimprovementtothispolicy,Ithinkitisstillagoodonewhichbringsmoregood  25  harmtothestudentsandthenation.Itshouldbestillcarriedout.