The so-called grocer's apostrophe, where it is used incorrectly in plurals, is one of the commonest mistakes made by native speakers in English. Why is it that something so simple causes so many problems- the apostrophe only has two functions,...
Source: The UsingEnglish ESL Digest Online newsletter weblog containing ideas, thoughts and musings about the English language and its use, and is aimed at ESL learners and teachers alike.
Apples and Orange's 
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