I'm______tograduateinthenexthalfoftheyear.
A、owingBecareful,_______you'llfalldown.
Hethoroughlyunderstoodthesociety__________.
EachyearintheUnitedStates,manyblackteenagers_______ofschool,eitherbecausetheycannotkeepuportheyhavetoworktosupporttheirfamily.
________they'vegottoknoweachotheralittlebetter,theygetalongjustfine.
Thefarmerhadtowearheavybootsinthewinterbecausethefieldsweretoowetand________.
