how time is flies!中文是什么意思?

how time is flies!中文是什么意思? How time flies!是什么意思? how time flies How time flies(fly)! time flies how time fly How time flies!怎样翻译 How time flies Three years is neally a short time 这个怎么翻译啊? How time flies!three years （） really a short time. 该填什么（is；a How time flies!Three years _____ really a short time.A.is B. HOW TIME FLIES.THREE YEARS _____ INDEED A SHORT TIME A.IS B. How time flies!There years___really a short time.A.is B.are How time flies!Three years ( )really a short time 是was还是is 三