1, One of your classmate is not good at speaking what can you advise her to do for improving?

97. What is citations?
A citation is a reference to a source. More precisely, a citation is an abbreviated alphanumeric expression embedded in the body of an intellectual work that denotes an entry in the bibliographic references section of the work for the purpose of acknowledging the relevance of the works of others to the topic of discussion at the spot where the citation appears.
Generally, the combination of both the in-body citation and the bibliographic entry constitutes what is commonly thought of as a citation (whereas bibliographic entries by themselves are not).
Citations have several important purposes. While their uses for upholding intellectual honesty and bolstering claims are typically for grounded in teaching materials and style guides, correct attribution of insights to previous sources is just one of these purposes. Linguistic analysis of citation-practices has indicated that they also serve critical roles in orchestrating the state of knowledge on a particular topic, identifying gaps in the existing knowledge that should be filled or describing areas where inquiries should be continued or replicated. Citation has also been identified as a critical means by which researchers establish stance: aligning themselves with or against subgroups of fellow researchers working on similar projects and staking out opportunities for creating new knowledge
98. How to avoid plagiarism?
Plagiarism means using someone else’s words or ideas without properly crediting the original author. Sometimes plagiarism involves deliberately stealing someone’s work, but more often it happens accidentally, through carelessness or forgetfulness.
When you write an academic paper, you build upon the work of others and use various credible sources for information and evidence. To avoid plagiarism, you need to correctly incorporate these sources into your text.
You can avoid plagiarism by:

1. 
   Keeping track of the sources you consult in your research
   
2.