vards wrote:
the box of nails,that is on the counter, is to be used on this project.
its a correct sentence as 'is' represents singular noun which can only be a box here..
A very minor thing is that if this sentence were to appear on GMAT, you would expect that there isno comma beforethat .
This is becausethat is (what is called as)essential modifier and so, isnot preceded by a comma.
On the other hand,which is (what is called as)non-essential modifier and isalways preceded by a comma.
Having said
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