It is the biggest change that has occurred in the pronunciation of the English language in the fifteenth century. This change mainly concerned the pronunciation of long vowels and is the direct cause of the current discrepancy between the spelling and pronunciation of English.
B. Make every word count - use only important words.
This is true because when you have as few as 750 words to state your point, you need to pack as much detail and facts as you can into a tiny amount of space. Chances are, they've provided either a prompt or several questions for you to answer, and you need to answer all of them or the entire prompt will a lot of description and you need to support whatever you said with detail and/or facts.
