Parallel structure is using the same pattern of words or using the same grammatical form. In this passage, "researching," "photographing," and "assembling" are all similar because of the -ing. So to make the phrase "to prepare the pieces" flow nicely, the best way to rewrite it is D, preparing the pieces. The -ing in "preparing" is similar to the pattern of the other words.
They let you use the campus internet
A. He fought in the war.
I read the book last year
Answer:
The last person who climbed Diablo Peak without the help of a guide is now a dry old skeleton at the bottom of Pike's Bluff.
Explanation:
The first part starts with a capital letter so you know that it is "The last person who . . ." The next part needs to be <em>how </em>the object (the last person) did the task (climbing). That makes it "without the help . . ." Next you need to know <em>what</em> happened to them. That makes it "is now," and "a dry old skeleton. . ." The last part is where the skeleton <em>is.</em> That leaves " of Pike's Bluff."
Hope this helped :)
