Othersarguethatsincetheearthhasenduredalongstringoficeagesinthelasttwomilliontothreemillionyears,anywarmingis________tobetemporary.
Wemust______thattheexperimentiscontrolledasrigidlyaspossible.
________they'vegottoknoweachotheralittlebetter,theygetalongjustfine.
Theaddressbook________theemailaddressesofyourfriendsorgroupsofcolleagues.
Thewealthofacountryshouldbemeasured________thehealthandhappinessofitspeopleaswellasthematerialgoodsitcanproduce.