SinceWilliamhadbeenseriouslyillforseveralmonths,hisparentswereworriedabout________toreturntoschoolfull-time.
Hethoroughlyunderstoodthesociety__________.
Iboughtthiseighteenthcenturywritingdeskataquite________price.
Thewealthofacountryshouldbemeasured________thehealthandhappinessofitspeopleaswellasthematerialgoodsitcanproduce.