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English grammar questions, answered by Alan

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Rustamsher
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Post by Rustamsher » Fri Nov 08, 2013 9:19 am

1. He has good knowledge of English grammar.
2. He has a good knowledge of English grammar.

In the two sentences is 'a' optional or compulsory?
If both are correct, is there any difference?

Thanks.

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Alan
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Re: Article

Post by Alan » Sat Nov 09, 2013 12:51 am

Obligatory.

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