General Writing and Grammar Help/that OR which.

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Question
Hello
Hope you are fine.

Which one is correct? Please explain your reasons.

A) Peter, I apologize for not replying to your email sooner. I am busy as I am preparing a lecture THAT I have to give shortly at my University.

B) Peter, I apologize for not replying to your email sooner. I am busy as I am preparing a lecture, WHICH I have to give shortly at my University.

I think B) is correct because we are giving additional information.

Thank you
Hame

Answer
Hello Hame,

The distinction between that and which is not as precise as it once was.  However, according to the Longman Handbook for Writers and Readers, "that" is used for clauses that provide meaning to the sentence that is essential.  "Which" is used for non-essential information.  I feel that the information is not essential.  The writer has already provided information (preparing a lecture) that gives the reason for not replying to the email.

Respectfully,

Dr. D

General Writing and Grammar Help

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Deborah Burgess

Expertise

Essays--I can assist students with questions concerning the process of writing an essay including preparation of an outline, development of a topic, development of the thesis statement and topic sentences, and paragraph development. I can assist students in helping them determine the proper rhetorical modes for their essay (narration, illustration, description, process analysis, comparison and contrast, and argumentation. I am able to answer questions concerning rules of style for a research paper including referencing sources. I am able to address questions regarding punctuation and grammar.

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I teach a writing workshop for the University of Phoenix (Richmond Campus) and two college courses: Essentials of College Writing and Elements of Composition.

Education/Credentials
Doctor of Management--University of Phoenix Masters in Human Resources--George Washington University B.A.--French and Linguistics, Oakland University

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