The wealth of a country should be measured ________ the health and happiness of its people as well as the material goods it can produce.
B
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EachyearintheUnitedStates,manyblackteenagers_______ofschool,eitherbecausetheycannotkeepuportheyhavetoworktosupporttheirfamily.
Itisusefultoscience_______theearthasanobjectinspace.
Theboyranoutoftheclassroomwithouttheteacher's_______.
It'smore________tobuyaseasonticketifyoutraveleveryday.
She________hernervousnesstotheimportanceoftheinterview.