jacklong  +  108768 Tue, 14 Jun 05 03:51 PM I came across the following sentence which makes me confused: "Basic data on air pollution were gathered from nearby monitoring sites or if not covered by supplemental studies." Does this sentence mean: "f the basic data on air pollution were not covered by supplemental studies, they would be gathered from nearby-monitoring sites"? Thank you for help in advance. jacklong Joined on Fri, Oct 29 2004 China Full Member 105 high profile manner a low-key man.

	abbie1948  +  109963 Fri, 17 Jun 05 03:06 PM I think so, Jack. It is a bit difficult to understand. Basic data on air pollution were gathered from nearby monitoring sites or if not, covered by supplemental studies abbie1948 Joined on Thu, Mar 24 2005 England Senior Member 2,657 Hope that helps. Abbie

	rwiles  +  120093 Thu, 21 Jul 05 02:24 PM How about: If not covered by supplemental studies, basic data on air pollution were gathered from nearby monitoring sites. (I would also treat data as singular.........basic data was gathered)  rwiles Joined on Thu, May 26 2005 Live in England work in Germany Full Member 144 Gott weiß ich will kein Engel sein

	Savvysavz  +  136452 Sun, 11 Sep 05 10:41 PM How about this one? ''If not covered by supplemental studies,basic data on air pollution was gathered from nearby monitoring sites.'' Savvy Savvysavz Joined on Tue, Aug 23 2005 French in no man's land Regular Member 549 Hell! There are no rules here! We're trying to accomplish something! (Thomas Edison)