UPSC 2016 CDS I English Paper

SI : Good memory is so common that we regard a man who does not possess it as eccentric.
S6: She wheeled away the perambulator, picturing to herself his terror when he would come out and find the baby gone.
P : I have heard of a father who, having offered to take the baby out in a perambulator, was tempted by the sunny morning to pause on his journey and slip into a public house for a glass of beer
Q : A little later, his wife had to do some shopping which took her past the public house where to her horror, she discovered her sleeping baby.
R : Leaving the perambulator outside, he disappeared into the drink shop.
S : Indignant at her husband’s behaviour, she decided to teach him a lesson.
The proper sequence should be