WhenIcamethroughthecustomsattheairport,Ihadtopay________onaclockIhadbought.
It'smore________tobuyaseasonticketifyoutraveleveryday.
She________hernervousnesstotheimportanceoftheinterview.
EachyearintheUnitedStates,manyblackteenagers_______ofschool,eitherbecausetheycannotkeepuportheyhavetoworktosupporttheirfamily.
Theaddressbook________theemailaddressesofyourfriendsorgroupsofcolleagues.