Fries's Structure of English, language teachers have described English words as falling into two broad types: those that belong in the dictionary like 'storm' and 'confabulate', called content or lexical words, and those that belong in the grammar like 'of' and 'the', called structure, function or grammatical words.
tl;dr: Structural Words are the meaningless little words in a sentence that make it flow or move from one important word to the next.
Answer:
c .When they reached the summit of Haleakala, it was almost dawn, they took pictures of the sun risingover the volcanic rim.
Explanation:
As you can see, the phrase shown in the question aciam, presents a sequence of activities that a group of individuals performed on the summit of Haleakala. These activities must be separated by commas, however, as it is a sequence of activities, it is not correct that the last comma is accompanied by the word "and", which means that option A is incorrect.
It is also not correct to use the adverb "then" after the pronoun "they", which indicates that option B is also incorrect and option C is correct.
I would say the editing phase, as I have done a lot of writing and multiple people around me refer it as that, but the revising stage also covers editing, which doesn't make much sense. I guess that it depends on what your class taught you. Sorry if this doesn't help you, but my best answer would be the editing, since it covers going back through a paper to check for errors. Do you know what the exact definition of "editing" and "revising" is and could you get back to me with that?
I think it’s 4. Every day in the US, ten people die from swimming.