Humanbehaviorismostlyaproductoflearning________thebehaviorofanimalsdependsmainlyoninstinct.
A、soI'msorryIforgottowrite;Ihadsomuchelse________mymind.
Theboyranoutoftheclassroomwithouttheteacher's_______.
Theoppositionleaders________thegovernmentfornottakingactionsooner.
_______themovieIwouldhavefinishedmypaperlastSunday.
Attendanceatfootballmatcheshave_____sincethecomingoftelevision.
