I got these tips from 2011-2013 graduate job aptitude test Q and A so I decided to share. These tips can help you solve sentence correction test issues.
* Try to identify errors while reading the sentence carefuly,
* When you dont discover any error, instantly then ask yourself these questions:
a. Is this sentence correct grammaticaly?
b. Is this sentence correctly structured?
c. The dictions used are they correct?
If you discover any error via these questions go straight and choose an answer that has the corrections needed.
* Having taken these two steps in few seconds, and you cannot find error. Read all the answer options and look out for differences between each option and the original question may be underlined.
* Finaly, eliminate options that have errors and choose from the options remaining