Read this excerpt from the dissent on tinker v. des moines:

the true principles on this whole subject were, in my judgment, spoken by mr. justice mckenna for the court in waugh v. mississippi university, 237 u. s. 589, 596-597. the state had there passed a law barring students from peaceably assembling in greek letter fraternities and providing that students who joined them could be expelled from school.
in terms of supreme court language and protocol, what is this excerpt an example of?
a. a precedent
b. a judicial review
c. a sentence
d. a court order

Acquiring english is a way of learning where you learn english by birth, this includes listening to your parents, brothers and sisters and on the whole learning it from the environment around you while mastering standard english need qualified institutes and teachers who make certain programs and syllabus to you master the standard english. this also can include a long session of academic studies before you can master the standard english.standard english is necessary for literary works, official usage and writing materials for standardized publications or when someone needs to speak publicly. in most cases the employers of a company also demand and like the use of standard english from their employees.