Few SC tips 
Most Imp Tip : Always read the entire sentence, never try to ignore the full sentence based on some standard error in first part of sentence. Sometimes intended meaning of sentence is different from what we are expecting.
Elimination process works very well in sentence correction
Give attention to
subject verb agreement,
Pronoun Subject agreement and verb tenses
Standard prepositions such as difference between among vs between*,
not only but also, either or, neither nor
Parallelism of sentences. Here one compare two or more phrases and all of the phrases should be of similar form
Eliminate any answer choice that distorts the intended meaning of the sentence
Elliptical verb phrases
Misplaced and Dangling ModifiersUse of which, where, that and semicolon
Appropriate use of this, Is it referring to subject or phrase clearly
Fewer vs less**,
Who vs WhomRun on sentences ( prefer the short and concise sentences only)
Proper use of adverbs
Note the intended meaning of the original sentences and eliminate any answer choice that distorts the meaning of original sentence
Ignore punctuation, It is never tested
Just because an answer choice is grammatically correct, don't assume it's the best choice. It might be a bit wordy or awkward; or it might contain a redundancy; or it might employ the passive voice. Another choice might be better overall.
Trust your ear. If an answer choice sounds awkward in the context of a sentence, don't bother to analyze it eliminate it and move on
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*Among vs Between
1) Use between with two items.
e.g:
Emily was standing between Sam and Adam.
Ram divided his property equally between his two children.
2) Between can be used to talk about distance and intervals.
e.g:
I will be at the college between eight and ten.
The distance between wooden studs in new houses in UK is 350mm
3) Between is used before each
e.g:
There seems to be less and less time between each event
Insert a space between each character
There are 9 lines between each centimeter
4) Use among with three or more items.
e.g:
Ram divided his property equally among his three children.
The letter is somewhere among these papers.
5) Use between when something/ someone is between several clearly separated thing/ people. Use among when something/ someone is in a group/ crowd/ mass which we cannot see separately.
e.g:
My villa is between the woods, the river and the village.
Your villa is hidden among the trees.
6) When talking about dividing and sharing things between or among more than two people or groups - can use any of the two
e.g:
Ram divided all his property between/ among his children and grandchildren - both between and among are correct
We shared the work between/ among four of us. - both between and among are correct
7) Generally between is used after difference.
e.g:
What's the difference between a Democrat and a Republican?
There are enormous differences between developing countries in burden of disease , financial resources, educational attainment, and health systems
**
Fewer Vs LessThe words fewer and less are commonly confused in English, or rather, less is used while fewer tends to fall by the wayside.
Fewer is used with countable nouns: people, animals, chairs, shoes.
You know fewer people than I do.
There should be fewer books on the table.
I have fewer ideas than everyone else.
Fewer of us show up each year.
Less is used for uncountable, usually abstract nouns: money, happiness, snow, idealism.
I hope less snow falls this year.
We need more money and less debt.
I have less computer savvy than you.
You should spend less of your time complaining.
Less is also used with adjectives and adverbs:
I'm less happy than I used to be.
He runs less quickly than you.
There are exceptions to these rules; for example, it is customary to use the word less to describe time, money, and distance (2, 3). For example, you could say, That wedding reception lasted less than two hours. I hope they paid the band less than Rs.4000. So keep in mind that time, money, and distance are different, but if you stick with the tip that less is for mass nouns and fewer is for count nouns, you'll be right most of the time.
