Practicality
There are different types of listening passages you will hear. Some use formal language while others are more casual. The language that can be heard in each question use pauses, intonation and fluctuation of voices. The first style is called conversation.
Assessing people interested in using English as their second language should develop their skills in four areas of learning which are listening, reading, speaking and writing. The easiest way to determine their English level is by taking the test via internet.