Re-arrange the following sentences according to sequence and rewrite. them in a paragraph: 

(a) Up to the age of twelve years, he was never absent from school. 

(b) Penicillin is a life-saving medicine.. 

(c) He went to school and came back home on foot. 

(d) It was discovered by Dr. Alexander Flaming. 

(e) The school was four miles away from their house. 

(f) Flaming was born in a poor family of Scotland. 

(g) Flaming was a regular and attentive student. 

(h) At the age of 14, he was sent to London