A man cannot remember everything that happened in his (a) but certain events are vivid in his (b) mind. They sometimes peep (c) his mind's eye. Very simple and trifling things are the centre of (d) to a child. When a man grows up, he may laugh (e) those things. For example, at the age of 6 or 7, when children's teeth start to fall, they start looking for a rat's hole, (f) in villages. Because they have heard that if they put the (g) tooth in a rat's hole, the rat will give them one of (h) teeth. Believing that they find out a rat's hole (i) put the fallen tooth inside it. This incident makes them laugh (j) they grow up.