Which sentence uses a participial phrase to add a sense of tension to the sentence? a) jimmy was so nervous he ended up chewing through his pencil. b) sighing deeply, jimmy appreciated his good luck with his test. c) chewing his pencil to a nub, jimmy struggled to remember the answer. d) jimmy spent the afternoon pacing nervously as he studied for the test.

faulty parallelism is a construction in which two or more parts of a sentence are equivalent in meaning but not grammatically similar in form.

the correct version of this faulty parallelism in the sentence is:

the hikers knew that the hike was six miles, that it usually required the entire day, and it would not be wise to start after 10: 00 a.m.

the problem is the last sentence, the first two have a basic subject+verb+object structure.

so, to give a proper balance to the structure, or better said, to give a parallel structure, we must write a basic s+v+o structure in all three sentences:

the hikers knew that the hike was six miles, that it usually required the entire day, and it would not be wise to start after 10: 00 a.m.