EachyearintheUnitedStates,manyblackteenagers_______ofschool,eitherbecausetheycannotkeepuportheyhavetoworktosupporttheirfamily.
Theaddressbook________theemailaddressesofyourfriendsorgroupsofcolleagues.
EachyearintheUnitedStates,manyblackteenagers_______ofschool,eitherbecausetheycannotkeepuportheyhavetoworktosupporttheirfamily.
Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.
It'smore________tobuyaseasonticketifyoutraveleveryday.