问题补充：
单选题Alltoo_____itwastimetogobacktoschoolaftertheglorioussummerholidays.A.oftenB.fastC.soonD.late
答案：
C解析all too实在太......，all too soon意为太快了，带有惋惜的意味，如：Tom had snatched a short holiday from his work to come here. He said it ended all too soon.（汤姆趁工作之暇匆匆来此渡一短假，他说，假期过得太快了。）
