In the United States the cost of living has been ____(持续地) rising for the past few decades.
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They ____(抑制) their guilt since they believe that their work will benefit everyone in the long run.
The income will enable the family to save for college ____(学费), take an extended vacation, buy a new car, and so on.
On a daily basis they return from school and ____(打开) the door to their home with the key hanging around their necks.
Some children stated that they used their ____(无人照看的) free time to perfect their athletic skills, such as playing basketball.