The question below is a passage consisting of six sentences. The first sentence (S1) and the sixth sentence (S6) are given in the beginning. The four sentences in the middle have been removed and jumbled up. These are labelled P, Q, R and S. Find out the proper order of the four sentences.
S1: The heart is the pump of life.
S6: All this was made possible by the invention of the heart-lung machine.
P: They have even succeeded in heart transplants.
Q: Nowadays surgeons are able to stop a patient’s heart and carry out complicated operations.
R: A few years ago it was impossible to operate on a patient whose heart was not working properly. 
S: If the heart stops we die in about five minutes.

Ordering of Sentences

Reordering of Sentences or Phrases:

1. Sentence rearrangement is an exercise where the student is required to form a meaningful paragraph by rearranging jumbled sentences.
2. Try to find the introductory sentence. It can be a definition, an observation, a concept, a description of an event etc.
3. Some commonly used linking words that can be observed are words that describe cause and effect, idioms, phrases, statements and assumptions etc. If a sentence is explaining a cause, most likely the effect will follow in the next sentence. 
4. Some connector words can be accordingly, hence, therefore, thus, given, when…then, if…then, because, so…that, consequently, and, also, furthermore, indeed, besides, likewise, more, not only…but also, however, despite, while, firstly, secondly etc.
5. Sense the tone of the passage. For example: Once upon a time… and they lived happily after that etc.
6. Basic idioms like ‘better late than never’ can also be used to identify the order of sentences.
7. Words like ‘yet’, ‘however’, ‘considering that’ etc., also helps in figuring out the correct sequence.
8. While rearranging phrases to form a sentence, the following points need to be kept in mind

i. Pronouns are used after the noun it is supposed to replace has been mentioned at least once.
ii. The words in basic idioms like ‘let someone off the hook’ uses a particular set of words in a specific sequence.
iii. Conjunctions like ‘but’, ‘that’ can be used to identify clauses.
iv. Preposition can also be used to figure out the correct sequence. For example, the preposition ‘on’ will generally be used before the noun ‘table’.