请分别为下面五则谚语及图片找到相应的寓意，并把序号A、B、C、 D、E填在题后相应的位置。
1. It's never too late to learn.
2. A crane standing amidst a flock of chickens.
3. The early bird catches the worm.
4. Play a harp before a cow.
5. A book holds a house of gold.
A. This proverb means that you do something useless.
B. This proverb means that someone is the best of all.
C. This proverb means that if you study hard, you will succeed.
D. This proverb means that there're many things to learn no matter how old you are.
E. This proverb means that if you do something early or before others,
you will have more chances and be successful.
1._____ 2._____ 3._____ 4._____ 5._____
