go read this post (from another forum):
http://www.beatthegmat.com/one-of-the-t ... tml#174075that post should answer all of your questions about this issue.
shaleengaurav Wrote:source- self made
Example 1- Efforts to increase recycling among consumers, a major goal of many american communities throughout the past decade,has not abundantly reduced the number of plastic water bottles being discarded annually into landfill
the doubt is between
(D) have not reduced the abundant number of plastic water bottles that has been discarded annually into landfills
(E) have not reduced the abundance in the number of plastic bottles that have been discarded annually into landfills.
this should be
have, since it's the bottles (not the number) that have been discarded.
there are other problems with this sentence -- for instance, none of the uses of "abundant" are correct -- but that's to be expected in a user-made problem (especially assuming that english is not your first language).
Example 2 - with its plan to develop seven and a half acres of shore land, cleveland is but one of a large number of communities on the great lakes that is looking to its waterfront as a way to improve the quality of urban life and attract new business.
this should be "are", since there are many communities that
are looking to their waterfronts, and cleveland is just one of them.
the post cited above explains all of this in great detail.