I'm sorry I forgot to write; I had so much else ________ my mind.
A、overC
暂无解析
I'm______tograduateinthenexthalfoftheyear.
Attendanceatfootballmatcheshave_____sincethecomingoftelevision.
Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.
EachyearintheUnitedStates,manyblackteenagers_______ofschool,eitherbecausetheycannotkeepuportheyhavetoworktosupporttheirfamily.
WhenIcamethroughthecustomsattheairport,Ihadtopay________onaclockIhadbought.
