Humanbehaviorismostlyaproductoflearning________thebehaviorofanimalsdependsmainlyoninstinct.

Idon'tknowhowwecanmake________onthetimetableforanymorecourses.

________tothepapersisrestrictedtoDefenseDepartmentpersonnelonly.

TheTVstation,in________tomassivepopulardemand,decidedtocontinuethesoapopera(肥皂剧).

GeneralMotors,oneoftheworld'slargestautomanufacturers,isexpandingits________inthiscountry.