<p>I got a bit stucked on parallelism. my question is, when the list of ideas or things is preceeded by a preposition, should the preposition be repeated with everything on the list? for example, from my SAT book (barron), "They are worried more about public opinion than about the effect of the proposal." Would it also be correct omit the second about and write "...than the effect of the proposal?" another example, "Hazel's parents objected to the loud music she played and to the late hours she kept." Can I omit the second "to" and still be correct? ("...and the late hours she kept.")</p>
<p>this is one of those issues where the SAT's idea of correct grammar differs from modern academic english. it would be perfectly fine to say "...and the late hours she kept" or "...than the effect of the proposal," and you'll hear educated people saying things like this all over the place.</p>
<p>so the short answer is this: for regular english, either type of phrasing would be totally acceptable. for the SAT, wherever possible, create phrases with as much parallelism as you can.</p>