阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
Even though it was only October, my students were already whispering about Christmas plans. With each passing day everyone became more 36 , waiting for the final school bell. Upon its 37 everyone would run for their coats and go home, everyone except David
David was a small boy in ragged clothes. I had often 38 what kind of home life David had, and what kind of mother could send her son to school dressed so 39 for the cold winter months, without a coat, boots, or gloves. But something made David 40 I can still remember he was
