grantchao Posted March 7, 2009 Share Posted March 7, 2009 The greatest road system built in the Americas prior to the arrival of Christopher Columbus was the Incan highway, which, over 2,500 miles long and extending from northern Ecuador through Peru to southern Chile. A. Columbus was the Incan highway, which, over 2,500 miles long and extending B. Columbus was the Incan highway, over 2,500 miles in length, and extended C. Columbus, the Incan highway, which was over 2,500 miles in length and extended D. Columbus, the Incan highway, being over 2,500 miles in length, was extended E. Columbus, the Incan highway was over 2,500 miles long, extending OA will post tomorrow Quote Link to comment Share on other sites More sharing options...
annihilation Posted March 7, 2009 Share Posted March 7, 2009 A: over 2500 miles long and extending - it should be extends B: extended (past tense) makes it sound like the road does not extend from ecuador to peru anymore C: placing "the Incan highway" inside the commas means that it is additional information that does not need to be there for the sentence to make sense, but if you take it out the sentence makes no sense what so ever D: same as C and changes meaning when it says "was extended" E: Correct, removing phrases the sentence would read; The greatest road system built in the Americas, the Incan highway was over 2500 miles long, extending from northern Ecuador through Peru to southern chile Quote Link to comment Share on other sites More sharing options...
grantchao Posted March 8, 2009 Author Share Posted March 8, 2009 Got you. Thanks annihilation. OA is E Quote Link to comment Share on other sites More sharing options...
atombomb_blast Posted March 8, 2009 Share Posted March 8, 2009 The greatest road system The greatest road system built in the Americas prior to the arrival of Christopher Columbus was the Incan highway, which, over 2,500 miles long and extending from northern Ecuador through Peru to southern Chile. A. Columbus was the Incan highway, which, over 2,500 miles long and extending B. Columbus was the Incan highway, over 2,500 miles in length, and extended C. Columbus, the Incan highway, which was over 2,500 miles in length and extended D. Columbus, the Incan highway, being over 2,500 miles in length, was extended E. Columbus, the Incan highway was over 2,500 miles long, extending IMO E reason: The sentence before comma is a adjective clause qualifying Incan highway, so the use of verb after commma is wrong. so rule out A & B.The incan highway is still extended to 2500 miles, so the verb must be in present continuous form extending and thus only E Hope this helps ... correct me if i am wrong. Quote Link to comment Share on other sites More sharing options...
mitzi Posted March 10, 2009 Share Posted March 10, 2009 My pick is E. http://www.www.urch.com/forums/gmat-sentence-correction/111056-comma-plus-not-way-gmat-prefer-_.html Quote Link to comment Share on other sites More sharing options...
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